Postgres: Failed due to unhealthy allocations.

I got stuck.
My Postgres instance is down. I can’t connect to it and have not idea how to fix it.

This is the error message I’m getting.

panic: error checking stolon status: cannot get cluster data: invalid character '\u0094' looking for beginning of object key string.

Also, when trying to restart the instance from the cli i’m getting this error:
Error no leader found

Did someone encounter something similar?