Cannot save menu items and get the error
The problem is the menu table with the record id = 1 is missing. This record is mandatory for the creation of new menu items.
The solution is after the jump.
When you are in the extension manager's database tab you receive the error
Database schema version (None) does not match CMS version (2.5.4).
Article images will not show up in Zoo items.
* JFolder::create: Could not create directory * Warning: Failed to move file!