My game is giving me a crash message telling me the cause is from Better Portals. I get this message every time I start the game and when I leave a server. (Not sure about single-player worlds) I never had this problem until I added a handful of mods: Galacticraft, Walia Harvestability, Foam Fix, Vanilla Fix, Better FPS, Not enough items, Random Patches, Applied Energistics 2, Dimensional Doors, and Discord Suite. You can see all the mods in the crash log below. My only guess is that is because of an optimization mod (Foam Fix, Vanilla Fix, Better FPS, or Random Patches) My friends are also getting the error message saying it is because of Better Portals. Thanks and I hope you find the solution. Crash Log: https://paste.dimdev.org/vatuneqiya.mccrash

Could you post the full game log? There may be additional helpful information in there.
Also please try to remove as many unrelated third-party mods as possible, optimally ending up with just BP(+Forgelin) + the conflicting mod (and also post the full game log for that).

2020-01-01-3.log
Here is the log of the server. I was going to make a pastebin link, but the file was too big and would crash the page.

I am looking for the client (the one which crashed) game (as opposed to "launcher") log.