I upgraded php to version 5.4.8 and I am getting the following error:

Warning: Illegal string offset 'installed' in /home1/jolajerz/public_html/jjalbum/plugins/AMenuManager/amm_root.class.inc.php on line 685

There is no issue with php ver 5.3.18

Is Piwigo compatible with that version of php or sometning must be modified to make it work.

Thanks.

Jerzy.