Try:
– switching to the default theme automatically by renaming your current theme’s folder inside wp-content/themes and adding “-old” to the end of the folder name using FTP or whatever file management application your host provides.
– resetting the plugins folder by FTP or phpMyAdmin.
– re-uploading all files & folders – except the wp-content folder and the wp-config.php & root .htaccess files – from a fresh download of WordPress. Make sure that you delete the old copies of files & folder before uploading the new ones.
Resetting (by renaming theme folder) theme I get the following:
Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘Worldpay_Payments’ not found in /homepages/3/d517637699/htdocs/wp-includes/plugin.php on line 505
Warning: Cannot modify header information – headers already sent by (output started at /homepages/3/d517637699/htdocs/wp-includes/plugin.php:505) in /homepages/3/d517637699/htdocs/wp-content/plugins/wp-popup-scheduler/wp-popup-scheduler.php on line 499
Ok, I can get in now but still have that text from above. All plugins cannot be activated.
Thank you by the way
FTP into your site (or use whatever file management application your host provides) & delete the wp-content/plugins/wp-popup-scheduler folder.
Ok, after putting the plugins on hold (using.hold) then activating again it looks like I have them back.
