Permission error

འཕྲོ་མཐུད་འགྱོ་: འཛུལ་འགྱོ་, འཚོལ་ཞིབ།

You do not have permission to send a message to multiple users at once, for the following reason:

The action you have requested is limited to users in the group: Administrators.

"https://dz.wikipedia.org/wiki/Special:MassMessage" ལས་ སླར་འདྲེན་འབད་ཡོདཔ།