Title: [NSFW] About Payment Gateway Last modified: March 27, 2023 --- # [NSFW] About Payment Gateway * [thesmmub](https://wordpress.org/support/users/thesmmub/) * (@thesmmub) * [3 years, 1 month ago](https://wordpress.org/support/topic/about-payment-gateway/) * I want to integration payment gateways for my website I have one already running with us – **Airpay** and cannot be deactivated as it is our primary payment gateway and when I integration second payment gateway it giving me a error – **Zaakpay** * It giving me a error stating -> * **Fatal error**: Cannot declare class Checksum, because the name is already in use in **/home/fxlzrejp/public_html/wp-content/plugins/woocommerce-zaakpay- payment-gateway/checksum.php** on line **2** * Please help with this and let me know.. * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fabout-payment-gateway%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 1 replies (of 1 total) * [xue28 (woo-hc)](https://wordpress.org/support/users/xue28/) * (@xue28) * [3 years, 1 month ago](https://wordpress.org/support/topic/about-payment-gateway/#post-16600666) * Hi [@thesmmub](https://wordpress.org/support/users/thesmmub/) * Thanks for reaching out! * I understand that you want to use the payment gateway [Zaakpay](https://zaakpay.com/) on your site, however, you are recieving the error messgae above, correct? * Since this is a third-party plugin that we don’t provide support for based on our [Support Policy,](https://woocommerce.com/support-policy/) I recommend that you reach out to the developers of the plugin for further assistance. They will be better equipped to help you resolve any issues you’re experiencing with the plugin. * [https://zaakpay.com/](https://zaakpay.com/) * All the best and hopefully, the issue will be fixed soon. Viewing 1 replies (of 1 total) The topic ‘[NSFW] About Payment Gateway’ is closed to new replies. * ![](https://ps.w.org/woocommerce/assets/icon.svg?rev=3234504) * [WooCommerce](https://wordpress.org/plugins/woocommerce/) * [Frequently Asked Questions](https://wordpress.org/plugins/woocommerce/#faq) * [Support Threads](https://wordpress.org/support/plugin/woocommerce/) * [Active Topics](https://wordpress.org/support/plugin/woocommerce/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce/unresolved/) * [Reviews](https://wordpress.org/support/plugin/woocommerce/reviews/) ## Tags * [etc.](https://wordpress.org/support/topic-tag/etc/) * [payment gateways](https://wordpress.org/support/topic-tag/payment-gateways/) * 1 reply * 2 participants * Last reply from: [xue28 (woo-hc)](https://wordpress.org/support/users/xue28/) * Last activity: [3 years, 1 month ago](https://wordpress.org/support/topic/about-payment-gateway/#post-16600666) * Status: not a support question