I have the answer myself but have no clue why it happen. To spare resources in the vps I stopped a couple of servers I dont use. Mailservers and bind server. For some reason that made the geocoding to stop working and also the telegram.
I am trying to make it work.
I found out that firstly I have to enable it in the configuration file. https://www.traccar.org/reverse-geocoding/
I used google geocoder but as I read I must have an api https://cloud.google.com/maps-platform/user-guide/account-changes/#no-plan
I found that in the logs
2020-03-11 22:46:32 WARN: Empty address. Error: You must use an API key to authenticate each request to Google Maps Platform APIs. For additional information, please refer to http://g.co/dev/maps-no-account
The reverse geocoding has worked for months without a problem but today when I wanted to see the address i get this in the log.