I am having the same issue and have done the DELETE FROM wp_options WHERE option_name LIKE ‘fs_%’ directly.
Here’s the error I’m getting (note the /test that’s the old URL):
Warning: fopen(/homepages/12/d272948611/htdocs/test/wp-content/plugins/content-aware-sidebars/content-aware-sidebars.php): failed to open stream: No such file or directory in /homepages/12/d272948611/htdocs/wp-includes/functions.php on line 4785
Warning: fread() expects parameter 1 to be resource, boolean given in /homepages/12/d272948611/htdocs/wp-includes/functions.php on line 4788
Warning: fclose() expects parameter 1 to be resource, boolean given in /homepages/12/d272948611/htdocs/wp-includes/functions.php on line 4791
I’m able to keep my production site up by changing line 1485 from using the variable defined to setting the path without /test.
Meaning, the code as written looks for:
$file = “/homepages/12/d272948611/htdocs/wp-content/plugins/content-aware-sidebars/content-aware-sidebars.php”;
But this isn’t a real fix. Do you have additional suggestions or did I miss something above?