this mod is amazing for single player and ive been really looking for a great infection mod like yours! however there's a big problem for servers with the infection i just wanted to report abit in-depth on

When an infected player dies to the infection on a server on 1.12.2 it causes them to be kicked and sent back to menu because of ticking entity problems.

another thing that happens involving infected is that if an infected player dies to a zombie they seem to cause the server to crash entirely.

Yeah I can see what's wrong with it, some methods in forge are marked as client only for no real reason.

Should be fixed as of 1.12.2-1.1.4d

Would you be able to send the server crash report?
Along with the log from when the player gets kicked.

yeah sure, heres everything after i gave myself the infection and then had it progress
report.txt

as for the server crash that is here
crash-2022-05-29_21.18.12-server.txt

keep in mind these problems only occur on modded servers and not single player for those same modpacks, i dont know how much insight that gives but yee