Poller stops working

Dear LibreNMS Members,
I’m using the example docker-compose and everthing seems to work fine. Bute after a few days (4-7) the poller stops working. I enabled watchdog but doesn’t help.
The only way to repair this is to restart the docker-comper with stop/start.
Can you help me with this problem? Do you need some logs or configs?
Kind regards and thanks