Title: Installation Problem Last modified: December 19, 2018 --- # Installation Problem * Resolved [prokopidis](https://wordpress.org/support/users/prokopidis/) * (@prokopidis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/) * Hello, * First we must thank you for your Addon and your support. * We use to have the Vivapayments Gateway Addon from emspace, but a problem appeared, and they are not support their addon anymore. * So we decide to install your addon. * After Installation, we enabled your addon. But Woocommerce Setting Page is no longer accessible, and appears the bellow message: * Needs a 256-bit key! 27 At line # 27 in: /var/www/vhosts/afronline.gr/httpdocs/ wp-content/plugins/woo-payment-gateway-for-vivapayments/encryption.php * Finally, if we disable your addon, Woocommece Setting Tab is ok again. * Thank you in advance. Viewing 15 replies - 1 through 15 (of 15 total) * Plugin Support [gibeladakis](https://wordpress.org/support/users/gibeladakis/) * (@gibeladakis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11011010) * Good Morning, * Can you check in your wp-config.php the value of the NONCE_KEY. It seems that there is the problem. This value is auto generated. Have you changed or deleted this value? * Thread Starter [prokopidis](https://wordpress.org/support/users/prokopidis/) * (@prokopidis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11015362) * Good morming, * First we must thank you for your quick reply-support. * We have just check our wp-config.php file, and search (CTRL-F) for the word “ NONCE_KEY”. * The Result is bellow: * [@since](https://wordpress.org/support/users/since/) 2.6.0 */ define(‘AUTH_KEY’,‘ put your unique phrase here’); define(‘SECURE_AUTH_KEY’, ‘put your unique phrase here’); define(‘LOGGED_IN_KEY’, ‘put your unique phrase here’); **define(‘NONCE_KEY’,‘ put your unique phrase here’);** * Thank you again for all. * Best regards, Prokopidis * Thread Starter [prokopidis](https://wordpress.org/support/users/prokopidis/) * (@prokopidis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11015403) * Dear gibeladakis, * In addition to our previous message and for better understanding we attach you 2 screenshots that appear only when we Enable Vivapayments Gateway Addon (Enartia) + Go to Woocommerce Settings: * [⌊screenshot-1⌉⌊screenshot-1⌉[ * and * [⌊screenshot-2⌉⌊screenshot-2⌉[ * Thank you in advance, Prokopidis - This reply was modified 7 years, 3 months ago by [prokopidis](https://wordpress.org/support/users/prokopidis/). - This reply was modified 7 years, 3 months ago by [prokopidis](https://wordpress.org/support/users/prokopidis/). * Plugin Support [gibeladakis](https://wordpress.org/support/users/gibeladakis/) * (@gibeladakis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11015534) * Good Morning * and thanks for your reply. * Regarding your last message all those security keys, should and must be completed with strong unique keys. * In simple words, a secret key is a password with elements that make it harder to generate enough options to break through your security barriers. A password like “password” or “test” is simple and easily broken. A random, long password which uses no dictionary words, such as “88a7da62429ba6ad3cb3c76a09641fc” would take a brute force attacker millions of hours to crack. A ‘salt is used to further enhance the security of the generated result. * The four keys are required for the enhanced security. The four salts are recommended, but are not required, because WordPress will generate salts for you if none are provided. They are included in wp-config.php by default for inclusiveness. * You don’t have to remember the keys, just make them long, random and complicated— or better yet, use the online generator. You can change these at any point in time to invalidate all existing cookies. This does mean that all users will have to login again. You can find the online generator in this url: [https://api.wordpress.org/secret-key/1.1/salt/](https://api.wordpress.org/secret-key/1.1/salt/) * Best Regards, * Thread Starter [prokopidis](https://wordpress.org/support/users/prokopidis/) * (@prokopidis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11015631) * Dear gibeladakis, * Thank you again for your helpfull support. * Because I don’t have very well coding knowledge, in simple words i have to edit our wp-config.php and change MANUALLY ‘put your unique phrase here’ with a random long password. * 1) Where i can find an online generator for those passwords or is the link you wrote on your previous message? 2) Our whole website worked just fine, without those passwords filled, with the emspace (previous non-supported addon) addon. 3) If we change or wp-config.php, and filled it with passwords, i hope it will not effect anything to our website. * Thank you very much. * Regards, Prokopidis * Plugin Support [gibeladakis](https://wordpress.org/support/users/gibeladakis/) * (@gibeladakis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11015774) * Dear Mr Prokopidis, * thank you for the responce. * Regarding your questions please find the relevant answers below: * 1.You can find an online generator from the link [https://api.wordpress.org/secret-key/1.1/salt/](https://api.wordpress.org/secret-key/1.1/salt/) * 2. This worked due to the fact that the until now there were no checks on how strong the password/passphrase were. * 3. The only thing that may be needed to is to log in again. * For further code related issues you can also try and conntacT the wordpress community this consists of users that have faced similar wordpress issues in the past. * Best Regards * Thread Starter [prokopidis](https://wordpress.org/support/users/prokopidis/) * (@prokopidis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11015934) * Dear gibeledakis, * Thank you for all, our problem solved. * But now, another problem appeared. * When we go to Woocommerce Setting and then Vivapayments Gateway to fill our credintials( MerchantID, API KEY, Code ID) all is ok but when we press SAVE Button API KEY Password is not saved. We try it again and again but it cannot save the API KEY value. * The message that our customer received is the bellow one: * “Ευχαριστούμε – η παραγγελία αναμένει πληρωμή. Θα μεταφερθείτε αυτόματα στη Vivapayments για να πραγματοποιήσετε πληρωμή. * Λάθος στοιχεία εμπόρου ή το API δεν λειτουργεί.” * We tried to change the API KEY from Viva Site and then change it again on Vivapayments Gateway Addon settings, but it was not saved again. (When we fill the API KEY and then Press SAVE, the webpage reloads and then API KEY field is blank again. * Thank you again and we are sorry for your time. * Best regards, Prokopidis * Plugin Support [gibeladakis](https://wordpress.org/support/users/gibeladakis/) * (@gibeladakis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11015997) * Hello, * have you made sure that the return links are * yourdomainname.gr/wc-api/WC_Papaki_Vivapayments_Gateway * or * yourdomainname.gr?wc-api=WC_Papaki_Vivapayments_Gateway if permalinks are disabled. * You can verify all settings from the screenshot found in the link below * [https://plugins.svn.wordpress.org/woo-payment-gateway-for-vivapayments/assets/instructions.pdf](https://plugins.svn.wordpress.org/woo-payment-gateway-for-vivapayments/assets/instructions.pdf) * Best Regards * Thread Starter [prokopidis](https://wordpress.org/support/users/prokopidis/) * (@prokopidis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11016282) * Hello again, * I have just created a new Viva Payment Source with new Code ID. * I tried both yourdomainname.gr/wc-api/WC_Papaki_Vivapayments_Gateway * or * yourdomainname.gr?wc-api=WC_Papaki_Vivapayments_Gateway if permalinks are disabled. * For a bad reason, on Woocommerce Settings –> Checkout –> VivaPayment Gateway, i fill again and again my credintials BUT API KEY Dissappared after SAVE BUTTON. * Hope for your help. * Thank you in advance, Prokopidis * Thread Starter [prokopidis](https://wordpress.org/support/users/prokopidis/) * (@prokopidis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11016330) * Hello again, * In addition to our previous message keep in mind that our PHP Version is 7.0.33. * We checked that also one more company (“karadimos.gr”) has also opened previous support topic with the same fault. * Best regards, Prokopidis * Plugin Support [gibeladakis](https://wordpress.org/support/users/gibeladakis/) * (@gibeladakis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11016475) * Thank you for your message. * The previous site seemed to manage to correct the problem most likely by checking the settings on the plugin and on the site. We did not need to provide him with specific support. * You can try contacting him for non plugin support since its most likely user related, however if you want us to try and help you please give us some time and we will try and get back to you with suggestions. * Best Regards * Thread Starter [prokopidis](https://wordpress.org/support/users/prokopidis/) * (@prokopidis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11018904) * Dear gibeladakis, * I have spent many our with trying everything I could imagine in order to fix the API KEY save failure, because I want the e-shop working for the Christmas period. * Finally, I went to check Addon Files (php) on the woocommerce addon editor. * So I find the plugin and check select on the ena Rita gateway plugin. The plugin had 3 files (….gateway.php, readme.txt, and …./encryption.php) * When I click to check …./encryption.php, it said (Disabled). * So because I don’t know how to enable this php again, I Uninstall (and delete files) and then install it again. * Nothing happened, and also keep in mind all my previous credentials (like merchandId, codeId, etc) were here. I try again and again to save API KEY but when I push the save button the page reloads and the API KEY field is blank. * I checked the files of the plugin after re-installation and …/encryption.php is Disable-Deactivate (it is said (Ανενεργό). * Thank you again for your precious time. * Best regards, Prokopidis * Plugin Author [George Kapsalakis](https://wordpress.org/support/users/georgekapsalakis/) * (@georgekapsalakis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11022922) * Good Morning, * I have checked the plugin in another site and the api key save is working as it should. * So, in order to help you with the installation can you send us an email at: [support@papaki.com](https://wordpress.org/support/topic/installation-problem-147/support@papaki.com?output_format=md), with the error log to find out the issue? * Best Regards, George Kapsalakis * Thread Starter [prokopidis](https://wordpress.org/support/users/prokopidis/) * (@prokopidis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11022938) * Good morning mr Kapsalakis, * First I must really thank you for keeping support me. You have to know that I really appreciate it and I am very happy that my domain and my host and all other services are also on papaki, and I suggest you to everyone asked me about websites. * To our problem: Where can I Find the error log in order to send it to you via e-mail? * Thank you again for your precious help. * Best regards, Prokopidis * Plugin Author [George Kapsalakis](https://wordpress.org/support/users/georgekapsalakis/) * (@georgekapsalakis) * [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11022960) * You can find instructions in this article (is in greek): [https://www.papaki.com/support/kb/article/%CE%A0%CF%8E%CF%82-%CE%BC%CF%80%CE%BF%CF%81%CF%8E-%CE%BD%CE%B1-%CE%B5%CE%BD%CF%84%CE%BF%CF%80%CE%AF%CF%83%CF%89-%CF%84%CE%B1-logs-%CF%84%CE%BF%CF%85-%CF%80%CE%B1%CE%BA%CE%AD%CF%84%CE%BF%CF%85-%CF%86%CE%B9%CE%BB%CE%BF%CE%BE%CE%B5%CE%BD%CE%AF%CE%B1%CF%82-%CE%BC%CE%BF%CF%85%3b-1548.html](https://www.papaki.com/support/kb/article/%CE%A0%CF%8E%CF%82-%CE%BC%CF%80%CE%BF%CF%81%CF%8E-%CE%BD%CE%B1-%CE%B5%CE%BD%CF%84%CE%BF%CF%80%CE%AF%CF%83%CF%89-%CF%84%CE%B1-logs-%CF%84%CE%BF%CF%85-%CF%80%CE%B1%CE%BA%CE%AD%CF%84%CE%BF%CF%85-%CF%86%CE%B9%CE%BB%CE%BF%CE%BE%CE%B5%CE%BD%CE%AF%CE%B1%CF%82-%CE%BC%CE%BF%CF%85%3b-1548.html) Viewing 15 replies - 1 through 15 (of 15 total) The topic ‘Installation Problem’ is closed to new replies. * ![](https://ps.w.org/woo-payment-gateway-for-vivapayments/assets/icon-128x128. jpg?rev=1622915) * [Viva Payments - Viva Wallet WooCommerce Payment Gateway](https://wordpress.org/plugins/woo-payment-gateway-for-vivapayments/) * [Frequently Asked Questions](https://wordpress.org/plugins/woo-payment-gateway-for-vivapayments/#faq) * [Support Threads](https://wordpress.org/support/plugin/woo-payment-gateway-for-vivapayments/) * [Active Topics](https://wordpress.org/support/plugin/woo-payment-gateway-for-vivapayments/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/woo-payment-gateway-for-vivapayments/unresolved/) * [Reviews](https://wordpress.org/support/plugin/woo-payment-gateway-for-vivapayments/reviews/) * 15 replies * 3 participants * Last reply from: [George Kapsalakis](https://wordpress.org/support/users/georgekapsalakis/) * Last activity: [7 years, 3 months ago](https://wordpress.org/support/topic/installation-problem-147/#post-11022960) * Status: resolved