Title: Fatal Error after update 3.5 version Last modified: August 20, 2016 --- # Fatal Error after update 3.5 version * [FDecade](https://wordpress.org/support/users/fdecade/) * (@fdecade) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/) * Hi I just try to update the latest wordpress 3.5 version but having the error message below and all my site was gone now. * Please help to advice how can I fix it? Appreciate your prompt advice soonest. * Fatal error: Call to undefined method Padd_Twitter::SimplePie() in /home/content/ 80/9786980/html/wp-content/themes/neodymiumos/includes/class-twitter.php on line 56 in /home/content/80/9786980/html/wp-includes/class-simplepie.php on line 3042 * Thanks and Many Regards! Viewing 14 replies - 1 through 14 (of 14 total) * [Krishna](https://wordpress.org/support/users/1nexus/) * (@1nexus) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278053) * Can you login to your dashboard? Site URL? * Thread Starter [FDecade](https://wordpress.org/support/users/fdecade/) * (@fdecade) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278054) * Krishna, Thanks for prompt reply. Yes I not able to login my dashboard and site URL too. Kindly guide me what should I do next. Thanks! * [Krishna](https://wordpress.org/support/users/1nexus/) * (@1nexus) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278056) * Can you post your site URL? * Thread Starter [FDecade](https://wordpress.org/support/users/fdecade/) * (@fdecade) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278057) * [http://www.socialmediastrategistnow.com](http://www.socialmediastrategistnow.com) * [Krishna](https://wordpress.org/support/users/1nexus/) * (@1nexus) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278059) * Using FTP, deactivate all plugins, switch to Twenty Eleven theme and see if your site is up. You can upgrade WP after that. * Thread Starter [FDecade](https://wordpress.org/support/users/fdecade/) * (@fdecade) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278061) * Krishna, Thanks for the guide. By the way, can you guide me more details how to using FTP to deactivate all plugins and switch to Twenty Eleven theme? Your help are highly appreciated. * Thanks. * [Krishna](https://wordpress.org/support/users/1nexus/) * (@1nexus) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278062) * Please read the following to setup and use FTP: [http://codex.wordpress.org/FTP_Clients](http://codex.wordpress.org/FTP_Clients) * Thread Starter [FDecade](https://wordpress.org/support/users/fdecade/) * (@fdecade) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278064) * Hi Krishna, Thanks for sharing. Yes, I know how to use FTP for uploading file but how to deactivate all plugins and switch to Twenty Eleven theme by FTP? Is it delete that particular plugin file and the current theme? * Thanks. * [Krishna](https://wordpress.org/support/users/1nexus/) * (@1nexus) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278065) * Just rename them by adding -old. That will do the trick. * Thread Starter [FDecade](https://wordpress.org/support/users/fdecade/) * (@fdecade) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278068) * Krishna, Thanks you very much. Will try to do it. * Thread Starter [FDecade](https://wordpress.org/support/users/fdecade/) * (@fdecade) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278079) * Hi Krishna, I was done to rename all the plugin file and current using theme. Then only left Twenty Eleven theme without changes but when try to visit my site, it become blank page? Kindly advice the next step to fix it. * Thread Starter [FDecade](https://wordpress.org/support/users/fdecade/) * (@fdecade) * [13 years, 8 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278080) * Can somebody advice me my problem now? Appreciate your prompt advice here. * [privaldes](https://wordpress.org/support/users/privaldes/) * (@privaldes) * [13 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278086) * I’m also going through it … I use the theme “Actiniumize” from Padd Solu tions. Anyone got any solutions? * [esmi](https://wordpress.org/support/users/esmi/) * (@esmi) * [13 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278087) * As per the [Forum Welcome](http://codex.wordpress.org/Forum_Welcome#Where_To_Post), please [post your own topic](http://wordpress.org/support/forum/how-to-and-troubleshooting#postform). Posting in an existing topic prevents us from being able to track issues by topic. Added to which, your problem – despite any similarity in symptoms – is likely to be completely different. Viewing 14 replies - 1 through 14 (of 14 total) The topic ‘Fatal Error after update 3.5 version’ is closed to new replies. * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 14 replies * 4 participants * Last reply from: [esmi](https://wordpress.org/support/users/esmi/) * Last activity: [13 years, 7 months ago](https://wordpress.org/support/topic/fatal-error-after-update-35-version/#post-3278087) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics