I just upgraded my site (joshua.trevino.at) to WP 2.2.3 from 2.2, and I am sorry to report that I now receive the following error upon loading the site:
Warning: preg_match() [function.preg-match]: Compilation failed: nothing to repeat at offset 1 in /home/.kate/trevinoadmin/joshua.trevino.at/wp-includes/classes.php on line 95
There’s an identical error on line 96 of classes.php too, but you get the idea. The only way to fix the problem is to set the permalinks format to Default. For some reason, once that is done, the site loads fine.
I am posting this for two reasons:
1) So the WP team is aware of the issue.
2) To ask whether there’s some sort of fix or workaround that others are aware of.
Thanks in advance for any advice or tips!