My friend can´t join in my server anymore (Mismatched mod list)

My friend cannot enter my server and it seems to me that no one else, this is something recent since before if they could join the server without any problem and we have not changed anything in the server configuration regarding anything including mods. The error that appears is the "Mismatched mods list", the folder that I download is the same that I have installed in mods so they are exactly the same, we have tried to reinstall the launcher, the mods, and everything but I have not seen results. The strangest thing is that I can join the server

Log error: [Blocked Image: https://media.discordapp.net/attachments/733121527280697395/823030071710318592/unknown.png]

https://www.mediafire.com/file…ecjn0zjwo/latest.log/file here is it. I couldn't upload it here directly

Toothy?

https://mclo.gs/f9yfHWj and the server ip is NorthLands.aternos.me

I ought to mention next things:

1-i can join in the server, even if I use another PC, but nobody else can

2-i tried to delete the whole server and reinstall the mods but it didn't work, so I think it's a mod but I don't know which one

3-before the server broke whe had the same mods that after it did it

https://mclo.gs/f9yfHWj is this one

Is client log the latest log?. And yes, literally we have the same file with the mods

I'll send you it when it be possible, my friend is haven't been able to play

I tried to join using a different launcher account and it worked, what it means?

Yes, specifically tlauncher

but the server is cracked by the way, so it ought to work

The problem is finally solved, I hat to restart my server, update the mods and forge in the server and pc, in addition i installed the new forge manually with client and server. The problem surely was a mod and my friend finally could join