HandleDisconnection() called twice - can't connect to my own server

[QueenBee]

I have a modded forge server with about 80 mod. It was perfect for a while, but now my friends can and I can't connect to it. It disconnects me and says HandleDisconnection() called twice.
I've tried change the RAM for the server, but it didn't help. Still can't connect. My pc isn't overloaded, so I don't know what's the problem.
Any suggestions? 

[king3dominic]

 

Could you provide your server log file? (logs > latest.log)

[QueenBee]

 

log.txt

[king3dominic]

18 hours ago, QueenBee said:

 

log.txt 7.93 kB · 0 downloads

''Mod alexsmobs requires citadel 1.11.1 or above
Currently, citadel is not installed''

You need to install the "Citadel" mod (https://www.curseforge.com/minecraft/mc-mods/citadel) for the "alexmobs" mod to work or you just uninstall "alexmobs". If you want to keep the mobs mod simply download the mod from curseforge and drag it into your server folder. Reply to this message if you need further help.

Edited July 4 by king3dominic

[QueenBee]

18 hours ago, king3dominic said:

''Mod alexsmobs requires citadel 1.11.1 or above
Currently, citadel is not installed''

You need to install the "Citadel" mod (https://www.curseforge.com/minecraft/mc-mods/citadel) for the "alexmobs" mod to work or you just uninstall "alexmobs". If you want to keep the mobs mod simply download the mod from curseforge and drag it into your server folder. Reply to this message if you need further help.

Still not working, same error message.

latest.txt

[king3dominic]

I'm not a Forge expert, you could ask them in their support discord https://discord.com/invite/curseforge