I’m running a multisite network, and after I network activate the plugin, I experience two issues:
1. I get the message the “core files need to be updated”. Clicking on the link to update automatically results in issue number 2:
2. I can no longer access the dashboard or front page for any of my sites. I get a server 500 error when I try to load the site. I looked in the server error logs, and saw this:
[error] PHP Fatal error: Ai1ec_Settings::get_instance() [<a href='ai1ec-settings.get-instance'>ai1ec-settings.get-instance</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition "Ai1ec_Settings" of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition in /wp-content/plugins/all-in-one-event-calendar/app/model/class-ai1ec-settings.php on line 299,
I tried deleting the plugin (and theme files, per instructions on this page for issue 1) and then manually re-uploaded by FTP, but each time the result is the same.
Is there anything I can do to get this plugin working? I really liked previous working versions of All in One Event Calendar, and would really like to use this plugin on my site!
Thanks in advance for your help!
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