The game crashed whilst unexpected error Error: java.lang.NullPointerException: Unexpected error

[Energhost1st]

This happened after installing the ftb chunks mod which overlaped with the previously installed Xaero's Minimap and Xaero's Worldmap. I solved the initial problem by uninstalling those mods, but the free server that I'm working with(Aternos) still makes the game crash each time I try to open the world map or te chunk map, also the minimap isn't even loading. Note that on my singleplayer worlds I have no problem. How do I fix this?

[Paint_Ninja]

We need your debug.log and crash log on pastebin.com, as explained in the FAQ.

https://forums.minecraftforge.net/topic/125488-rules-and-frequently-asked-questions-faq/