Maybe spin up grain and check it out 😉 
JK but if you did test it out, I would be greatly appreciative of feedback! Will zap for testing ⚡ 

 Please check if you have "1006: resource temporarily unavailable" in log.
If you have this, change "nofiles" in configuration to 0.
This works for me. 

 hmm thanks, will try 

 One more thing, in your case, you might also need to increase file descriptor limit because of high active user.
https://www.cyberciti.biz/faq/linux-increase-the-maximum-number-of-open-files/