Does anything appear in your logs about the error? If so can you post it here?
I have another problem all my new registered users apears like in foto:
And in logs i see this error
node_redis: Deprecated: The ZADD command contains a "undefined" argument. This is converted to a "undefined" string now and will return an error from v.3.0 on. Please handle this in your code to make sure everything works as you intended it to.
How fix it?
That's not a Redis error but it does appear to be a bug. Open an issue on Github.