b2263647

What’s the magic word? ??

You need to replace the path to the cache in ai1ec_settings within wp_options table. Make sure to also change the s: value before the path to match the actual number of characters of the string. Otherwise the serialized array will be messed up and broken.

Every time a webpage All-in-One Event Calendar is used on …

Every time a webpage All-in-One Event Calendar is used on is retrieved …

I had to restore the file backup and manually replace the paths in the database. That worked for me.

That didn’t resolve the problem. ??

Additionally, the calendar style on the frontend is messed up afterwards.