Server closes when i try to join.

I can't play on my Athernos server, it starts up normally, but when I try to join, it closes down always. I'm using 4 Mods: Digimobs, JEI, Journeymaps and Iron Backpacks. This is the crashlog i get

https://mclo.gs/Nln6PQX

I've already read the other boards about this, trying to solve it myself. I tried downloading the world, and deleting the playerdata folder, then uploading it. I've even tried making another singleplayer world, deleting the playerdata folder then uploading that, but still nothing. Can someone help me? I Really wanna play digimobs with my friends.

But i really want to play this mod, and aternos is the only way i can make it

No, its still the same

Is there a way to fix it without deleting the mod?

thank you for your help