Title: Error 500 Admin Panel. Last modified: September 1, 2016 --- # Error 500 Admin Panel. * Resolved [tengocalor](https://wordpress.org/support/users/tengocalor/) * (@tengocalor) * [9 years, 11 months ago](https://wordpress.org/support/topic/error-500-admin-panel/) * I have updated Revive Old Post Pro from Versión 1.5.3 to the newest version. * Then, I have got and 500 error when I wanted enter to Admin Panel on WP: * PHP Fatal error: Cannot redeclare tgmpa_load_bulk_installer() (previously declared in /var/www/vhosts/socialblabla.com/httpdocs/wp-content/plugins/tweet-old-post- pro/inc/lib/dependencies/class-tgm-plugin-activation.php:3154) in /var/www/vhosts/ socialblabla.com/httpdocs/wp-content/themes/socialblabla/includes/wp_booster/ external/class-tgm-plugin-activation.php on line 1694 * I have delete Revive Old Post Pro and I have install again 1.5.3. * I have this log from Revive Old Post: 22-06-2016 07:06:37 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:06:39 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:06:48 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06- 2016 07:08:11 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:09:33 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:10:03 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:10:08 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:11:06 PM Invalid next schedule: Jan 1, 1970 @ 0: 00 22-06-2016 07:11:39 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:12:07 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:12:14 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:12:34 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:12:54 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:12:57 PM Invalid next schedule: Jan 1, 1970 @ 0: 00 22-06-2016 07:12:59 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:13:08 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:13:49 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:13:51 PM Invalid next schedule: Jan 1, 1970 @ 0:00 22-06-2016 07:13:53 PM Invalid next schedule: Jan 1, 1970 @ 0:00 * Now, Revive Old Post is not working because it say that “we need business account” and we have purchased it. * BTW: All plugins are working OK. Only ROP is working bad. * [https://wordpress.org/plugins/tweet-old-post/](https://wordpress.org/plugins/tweet-old-post/) Viewing 7 replies - 1 through 7 (of 7 total) * Thread Starter [tengocalor](https://wordpress.org/support/users/tengocalor/) * (@tengocalor) * [9 years, 11 months ago](https://wordpress.org/support/topic/error-500-admin-panel/#post-7513072) * It looks like our plugin is a “not pro version”. * We have pay this plugin, and plugin says us that we must pay again. * We are waiting about 4 days. * Please, help. * Plugin Contributor [Uriahs Victor](https://wordpress.org/support/users/uriahs-victor/) * (@uriahs-victor) * [9 years, 11 months ago](https://wordpress.org/support/topic/error-500-admin-panel/#post-7513090) * Hello, * This is a fault on your Theme developer’s end. You need to tell them to update their TGM Plugin Activation to the latest version so it doesn’t conflict with our plugin. * Our plugin’s TGMPA is up to date and checks if the function already exists, however your theme own is not. * So you need to tell your theme developer this, you could link them to this thread. * Best regards, Uriahs * Thread Starter [tengocalor](https://wordpress.org/support/users/tengocalor/) * (@tengocalor) * [9 years, 11 months ago](https://wordpress.org/support/topic/error-500-admin-panel/#post-7513101) * It is not possible, because it is happening with several themes. * And some of them are native from WP. * Plugin Contributor [Uriahs Victor](https://wordpress.org/support/users/uriahs-victor/) * (@uriahs-victor) * [9 years, 11 months ago](https://wordpress.org/support/topic/error-500-admin-panel/#post-7513102) * Hello, * FIRSTLY please ensure you have the latest version of ROP installed. * The `PHP Fatal error: Cannot redeclare tgmpa_load_bulk_installer() (previously declared in /var/www/vhosts/socialblabla.com/httpdocs/wp-content/plugins/tweet- old-post-pro/inc/lib/dependencies/class-tgm-plugin-activation.php:3154) in /var/ www/vhosts/socialblabla.com/httpdocs/wp-content/themes/socialblabla/includes/ wp_booster/external/class-tgm-plugin-activation.php on line 1694` error is caused because your theme developer has not updated their TGMPA file to the latest version. * The error is saying that the function is already declared because it’s being declared in ROP and your theme, in the latest version of ROP we have updated the TGMPA to the latest one so it checks if the function is already declared. * Please log into your website via FTP and rename the folder of your “socialblabla” theme then log back into the website, you could then go back and undo the rename. * Then let your theme developer know they need to update TGMPA. * Best regards, Uriahs * Thread Starter [tengocalor](https://wordpress.org/support/users/tengocalor/) * (@tengocalor) * [9 years, 11 months ago](https://wordpress.org/support/topic/error-500-admin-panel/#post-7513107) * Hi again, * We have udpate to the last version. Then, ROP broken admin panel. * Then, we have install old version of ROP. Now, it is saying that we have not a business account. And we have pay for it. * There is not a problem from theme, because we are using native theme from WordPress. * Thread Starter [tengocalor](https://wordpress.org/support/users/tengocalor/) * (@tengocalor) * [9 years, 11 months ago](https://wordpress.org/support/topic/error-500-admin-panel/#post-7513111) * More datas: * We have another site. That site have last version of ROP. * Thanks site says that we need “bussiness account” for schedule post every 2 hours. * And, of course, we have pay pro addon. * Really, we think that our locense has been null. * Can u please help us???? * [Alexandra](https://wordpress.org/support/users/alexandrastan001/) * (@alexandrastan001) * [9 years, 11 months ago](https://wordpress.org/support/topic/error-500-admin-panel/#post-7513112) * Hello, * Can you write us an email at [friends@themeisle.com](https://wordpress.org/support/topic/error-500-admin-panel/friends@themeisle.com?output_format=md)? Please mention this support thread as well. * Best regards, Alexandra Viewing 7 replies - 1 through 7 (of 7 total) The topic ‘Error 500 Admin Panel.’ is closed to new replies. * ![](https://ps.w.org/tweet-old-post/assets/icon-256x256.gif?rev=3127181) * [Revive Social – Social Media Auto Post and Scheduling Automation Plugin](https://wordpress.org/plugins/tweet-old-post/) * [Frequently Asked Questions](https://wordpress.org/plugins/tweet-old-post/#faq) * [Support Threads](https://wordpress.org/support/plugin/tweet-old-post/) * [Active Topics](https://wordpress.org/support/plugin/tweet-old-post/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/tweet-old-post/unresolved/) * [Reviews](https://wordpress.org/support/plugin/tweet-old-post/reviews/) ## Tags * [error 500](https://wordpress.org/support/topic-tag/error-500/) * 7 replies * 3 participants * Last reply from: [Alexandra](https://wordpress.org/support/users/alexandrastan001/) * Last activity: [9 years, 11 months ago](https://wordpress.org/support/topic/error-500-admin-panel/#post-7513112) * Status: resolved