When I try to create or edit any Joomla menu item I get this error message:
An error has occurred.
0 Cannot use object of type stdClass as array
Any idea? what i can do to fix it?

nanto

The same happens to me.

What can be done?

Problem caused by plugin x_menu_params
go to admin > Menu > Plugins >
and disable temporarily "System - Extra Menu Params" to create or config menus items
nanto

Dear nanto

Thanks for your solution.

thanks

Same issue here with SJ Personal.
1. Disabled the plugin: no effect
2. Changed the line of code if($data['id'] && $data['parent_id'] == 1) { in plugin code to if($data->id && $data->parent_id == 1) { as indicated by exmr: no effect
I can see the point but since php is not my "native" language, I'm not sure as to where to look at other than plugins/system/x_menu_params/x_menu_params.php

Thanks to anyone who has a clue...

Cheers

Philippe