traccar sms gateway

Downloaded and installed traccar sms gateway for Android. Added config to configuration with the token from the app. test give this

... Unexpected token in JSON at position 64 ... - MessageException (HttpSmsClient:99 < NotificatorSms:48 < Notificator:39 < NotificationResource:107 < ...)

Could be related to this:

https://github.com/traccar/traccar/commit/f53d4c24cd7cc4b7cbd3bd043f8d1e95c72d24e4

so what to do about it. I installed the app today

You apply those changes and see if it fixes the problem.

should I update the files in that folder?
I installed this traccar the 26 nov so it should be updated?

Well I gave up and now I test Clicksend.
Testmessage

{"http_code":400,"response_code":"BAD_REQUEST","response_msg":"The messages array is empty.","data":null} - MessageException (HttpSmsClient:99 < NotificatorSms:48 < Notificator:39 < NotificationResource:107 < ...)

I have updated all short templates. The error dissapered but no sms sent. Nothing in log file

If there's no error, it means your SMS service has successfully accepted the API call.

I now use your sms gateway. I have an old Android laying around anyway and unlimited sms on my mobile account so it will do for a while.