Server keep closing

ok now in my server when i join server gets closed (the second i join server just closes)

how can i fix this

Mods i use

citadel-1.8.1-1.16.5.jar

dungeons_plus-1.16.5-1.1.5.jar

DungeonsArise-1.16.5-2.1.49-beta.jar

DungeonsMod-1.16.3-1.4.43.jar

jei-1.16.5-7.8.0.1009.jar

journeymap-1.16.5-5.8.5p6.jar

lostcities-1.16-4.0.12-beta.jar

mine-mine-no-mi-1.16.5-0.9.2.jar

structure_gel-1.16.5-1.7.8.jar

logs:

Quote from Powerful845tiger

Do you face the issue if you try switching to https://aternos.org/software/v/arclight/1.16.5 ?
Keep a backup before switching to it

alright ill try that