⭐ Merited by DireWolfM14 (1)
So, I just switched to EPS. I didn't fix electrumx. I may formulated it wrongly, but "fixed" goes to my main purpose, which is running electrum without trusting anyone. I achieved it, thank you for your help. 
As long as you accomplish your goal
But if you want to use electrumx to make Electrum server which is publicly accessible, you can consider,
1. Easy installer, https://github.com/bauerj/electrumx-installer. Although i don't know how well it works.
2. Docker, https://github.com/lukechilds/docker-electrumx
3. Setup with systemd, https://electrumx-spesmilo.readthedocs.io/en/latest/HOWTO.html#using-systemd