Servers do not load with this mod

[EndermanCo]

For example, when I connect to the play.jartex.fun server, the game page does not load and gets stuck.

Version:1.8.9 Mods: legacy fabric api 1.9.1 legacy fixes 1.0.1 legacy optfabric 2.3.2+1.3-1.13.2 legacy mod menu 1.1.0 axolotl client 3.0.6+1.8.9

Log before adding this mod: https://mclo.gs/POZT9A4

Log after adding this mod: https://mclo.gs/TzG0rx0