Hello, I've done some research around the topic of "Could not serialize" issues, and of all the ones I found they either did not provide any solution, or stated that serialize warnings could be ignored.
Server Version:
Minecraft: 1.16.5
Forge 36.1.32
Forge Client Version: 36.1.32
The problem at hand is when I use the console to op my account, "Doggoh," I get kicked from the server, and if tabbed out of Minecraft, my client crashes.
player crash txt
Upon attempting to rejoin, I was timed out before connection and the Server Watch Dog timed out at a 60 second wait, crashing the server.
server crash txt
Log of being kicked from initial opping:
Server Latest Log
Server Debug
Client Latest Log
Client Debug
Server mods:
Client mods: