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?