Error message

• Warning: count(): Parameter must be an array or an object that implements Countable in theme_mmenu_tree() (line 856 of modules/mmenu/mmenu.module).
• Warning: array_merge(): Expected parameter 2 to be an array, string given in theme_mmenu_tree() (line 857 of modules/mmenu/mmenu.module).
• Warning: implode(): Invalid arguments passed in theme_mmenu_tree() (line 869 of modules/mmenu/mmenu.module).
• Warning: count(): Parameter must be an array or an object that implements Countable in theme_mmenu_tree() (line 856 of modules/mmenu/mmenu.module).
• Warning: array_merge(): Expected parameter 2 to be an array, string given in theme_mmenu_tree() (line 857 of modules/mmenu/mmenu.module).
• Warning: implode(): Invalid arguments passed in theme_mmenu_tree() (line 869 of modules/mmenu/mmenu.module).