Server crashed upon entering the End for the first time

Hey, my modded server that I play with one friend just crashed when we tried to enter the end for the first time. It didn’t even show the loading screen for entering a new dimension. We have been using this server for about a month with no previous crashes, just today.

I don’t understand most of what the crash log says, but it mentions the t_and_t mod, presumably the Towns_and_Towers mod that I have installed. Do I need to delete that mod, and will it somehow ruin our world? I really don’t want to start this world from scratch. Thank you for the help!

Here is the crash log. If you need more info please let me know!

Thank you, what can I do to fix it? Or do I just have to scrap the server and start fresh?

Thank you, what can I do to fix it? Do I need to remove the mod? I want to keep it in if at all possible since my friend wants the purple wood that the mod provides. Is there a conflicting mod I should remove instead, and what will that do to the server? Will it restart the whole world? Thank you!

Quote from Powerful845tiger

only way to fix it is to remove other biome mods which modify the end

Does that break the world? Like will I have to start everything from scratch or will it just pick up where it left off?

Quote from Powerful845tiger

Depends. Make a backup of the server and try doing it

That worked! Thank you!