Hello,

I just installed K2 2.5.1 for Joomla 1.5.23
When I add a new catagory and hit 'Save' I get the following message:

Fatal error: Call to undefined function mb_regex_encoding() in /mnt/webg/b2/86/52371786/htdocs/3dayz/administrator/components/com_k2/tables/k2category.php on line 93

I re-installed the whole thing, but nothing changed... I still get the same error. If I can't add a catagory, I can't add an item, which means I can't use K2 ... which would be a shame B)

Hope anyone can help!

Arckoo