How to make Openhab understand a string which contains a time?

I would also be willing to pay for help to make it work

Once I manage to get this working I can finally use multi room timers with Alexa.

@rlkoshak @papabrenta Are you guys familar with this error? I found something about it in your thread here: Common Rules errors and their solutions but I wasn’t able to find out what is causing the problem. Because as far as I can tell there is no bracket or something like that missing.