Can't update role's permission.

Can't update role's permission.

Ekachai Singthong གིས-
Number of replies: 0
I go to Edit role page [Users >> Permissions >> Define roles] and adjust permission i want. After finish all i click save changes button and Moodle show me some error like screen shot i attached to this post.
Attachment Section_Error.gif
དཔྱ་སྙོམས་ཀྱི་སྐུགས་ཚུ།: -