Add Nitrado Minecraft Mod?

Nu
- in Mods
1

Moin I've only been in despair for 3 hours, I've already managed to select the Forge Vanilla 1.16.2 modpack at nitrado (that's where I get it on the server, even where I added Optifine to FileZila and my .minecraft folder) .) but I hardly want to add another 1.16.2 mod it says when I also go multiplayer, Can't connect to server '' also restarted the server, etc. But it just doesn't work. There are 0 helpful videos in YT, so I'll try this here.

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Create a mods folder and drag the mods into it, sometimes a folder has to be generated, just double-click on the mod, i.e. On the .jar file!

Greetings, wolf tongue!
If you have any questions, please let me know!
Here to my https://youtube.com/.../Wolfzunge