Response from JoomlArt Updater Service: Your account does not have enough permission to take this action. Please contact "JoomlArt Updater Service" for more information or use another account.

When trying to update the T3 System plugin through JA Extension Manager I get the error message

Response from JoomlArt Updater Service: Your account does not have enough permission to take this action. Please contact "JoomlArt Updater Service" for more information or use another account.

Please fix this!