Moodle for mobile

Hi,

I'am getting the same error on  moodle desktop 3.7.2 as well as with Android  app 3.8.2 and  moodle 3.5 and

I can login login on the apps. When I clic on "Available courses":

• I get "Error connecting to the server" if I'm using the app with an ordinary user account
• Everything works fine when I'm using the app with an administrator account.
• I tried with local account as well as with an LDAP account and still getting the same result.

So, how to fix that?

• Mobile web service is already enabled
• for the "Authenticated user" role, the following capacities are already allowed.
  • Mobile: Manage devices (message/airnotifier:managedevice)
  • Create a web service token for mobile access (moodle/webservice:createmobiletoken)
    

Thanks a lot.