I'm using Wordpress 4.9.9 and CiviCRM 5.4.1. Earlier today I updated several plugins, everything works fine except Civi.
** UPDATE: With civi activated, I get a blank page any time I try to edit a Wordpress page.
I also get a blank page when I try to go to the Civi dashboard in Wordpress and I cannot access any Civi pages such as event registration or membership pages.
In a Wordpress log I get:
2019-02-14T22:19:10+00:00 CRITICAL Uncaught CRM_Core_Exception: [0: Invalid cache key: Not a string thrown in /var/www/vhosts/<site>/httpdocs/wp- content/plugins/civicrm/civicrm/CRM/Utils/Cache.php on line 236
That code is in the assertValidKey function.
Any ideas on where to go from here?