Fatal error: Uncaught Error: Call to undefined function Rollback_Update_Failure\deactivate_plugins() in /www/htdocs/w0172011/xn--hof-hcker-47a.de/wp-content/plugins/rollback-update-failure/plugin.php:36 Stack trace: #0 /www/htdocs/w0172011/xn--hof-hcker-47a.de/wp-settings.php(447): include_once() #1 /www/htdocs/w0172011/xn--hof-hcker-47a.de/wp-config.php(90): require_once('/www/htdocs/w01...') #2 /www/htdocs/w0172011/xn--hof-hcker-47a.de/wp-load.php(50): require_once('/www/htdocs/w01...') #3 /www/htdocs/w0172011/xn--hof-hcker-47a.de/wp-blog-header.php(13): require_once('/www/htdocs/w01...') #4 /www/htdocs/w0172011/xn--hof-hcker-47a.de/index.php(17): require('/www/htdocs/w01...') #5 {main} thrown in /www/htdocs/w0172011/xn--hof-hcker-47a.de/wp-content/plugins/rollback-update-failure/plugin.php on line 36