TileEntity

Remove the mod alltheleaks

Removing random mods or half of the mods may break an existing world ...

Add the new crash-report

Remove the mod distraction_free_recipes

You can do this without any mods: At the center of your spawn, use /setworldspawn then /gamerule spawnRadius 0 So the player spawn will be at this location To protect this area, change the spawn-protection value in the server.properties Default is 16 blocks - so an area of 33x33 blocks (one spawn block plus 16 blocks in each direction) is protected based on your worldspawn - just increase the number to protect a larger area

Make a test without sodiumdynamiclights

Does the vanilla server use the same Java version and port?

Something on your system is blocking the connection (Firewall/Antivirus or similar)

Add the client/server log with sites like https://mclo.gs/

Yes - not all mods are working on a server (client-side-only mods) - shader mods, minimaps, mods making HUD changes etc

Just check for trending modpacks Maybe ATM9 https://www.curseforge.com/minecraft/modpacks/all-the-mods-9/files/7097953

Same issue Maybe switch to a pre-configured modpack - most of these already have a serverpack Use such a modpack as working base and add some mods

Just replace Connector with this build: https://www.curseforge.com/minecraft/mc-mods/sinytra-connector/files/5761411

Try older builds of Connector

Make sure you put this file into the mods-folder: https://www.curseforge.com/minecraft/mc-mods/fabric-api/files/8443275 Referring to the log, this mod is not present