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By the way, I don't think I made this as clear as possible. When the server would not start, I copied the world from the server and am now trying to load it in from Single Player. When I said I removed the mods, I meant I did so from the client, as the server was out of the picture, as I was loading the world locally from single player. The log I provided before was from the server, but same thing happens on Single player.
I did disable all of those mods in the screenshot, and the world would not load past 14%. Adding them back i'm loading up to 80% and then nothing.
This is the full startup log of trying to join it from singleplayer: https://mclo.gs/Or8U7N6
And here is the debug.log from BEFORE when I was trying on the server. https://mclo.gs/2uTQucK