I upgraded from 1.2 (?) to 1.4 a while ago and got the error described below. I tried to solve it by upgrading to the lateest version 1.4.1 but no help.
Not even sure whether this is related to the upgrades or improving security settings (according to the instructions given here).
Anyway this is the error:
When I go to admin panel / content /pages and try to add a new page or edit an existing one, I get the following errors:
Have been fighting with this for days but couldn't find any hits to solution. So, please help, someone!c1608e58b7a40647381b4667630bf061
Notice: Undefined index: p in /home/bawu/public_html/lib/classes/contenttypes/av__SectionHeader.inc.php on line 118
82d58bfc8dc7a2fa985939b01d5b694f
69175bee376c12eba6ddbd1f632a7f10
Fatal error: Class 'av__sectionheader' not found in /home/bawu/public_html/admin123456/editcontent.php on line 439
thanks!
Tim