Can't join a Vanilla server with do a barrel roll installed

[zz4163]

Describe the issue
when I install the mod for neoforge 1.21.0, the game launches fine but if I join a vanilla server, it will say "connection lost: you are trying to connect to a server that is not running neoforge, but you have mods that requires it. a connection could not be established." the mod itself can be ran on the client sided without the server having it but in this case it's not working like it should be.

Crash report/logs (if applicable)
No crashes, just simply can't connect to servers.

Additional information
N/A

[enjarai]

Could you provide a log file of when you try to connect to a vanilla server?

[zz4163]

debug.log
i got a debug log if that helps, it was the latest one before i removed the mod to play minecraft

[niccy266]

For anyone looking to work on this issue, here is zz's neoforge versions:

[niccy266]

@zz4163 What other mods did you have installed? Were you able to connect to the vanilla server with all the same mods except do a barrel roll?