They already solved the problem, the portals of my server are already working luckily.
your portals already work Gravemind98?
No, but if They solved your problem I guess that mine will fixed eventually 
Posts by Gravemind98
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Same in my situation, I'm trying comparing if it works on other loaders, maybe you could also try
EDIT: I tried using only Forge instead of Mohist, and portal works so the problem seems to be Mohist. End portal also doesn't works