I am trying to logged in via my credentials then it gave me error ''No permission to create web service token for the service local_mobile' . Last time I added token by clicking on
home > site administration > plugins > web services > manage tokens
and I also Site administration > Plugins > Web services > External services, edit "Moodle Mobile additional features" and check the "Enabled" field.
Last Time it was working fine and I was able to logged in but now not working. I tried everything but not working anything.