Make sure you're using a game version that is compatible with the mods you'd like to install, the 2 most common mod loaders are Fabric and Forge. Fabric mods do not work with Forge and vice versa.
As mods are version specific, they will only work on the version of the game they were created for and not any others. A mod created for Forge 1.16.5 will only work on Forge version 1.16.5. If you try to install it on a 1.20.4 server, it either won’t load at all or the server will crash on startup.
Mod dependencies provide a solution for sharing mod contents across multiple other mods. Some mods require you to install other mods in order to run correctly. These are often either specified in the console when trying to start the server up without them, on the mod page itself or could also be found from the Relations tab at the top of the mod's Curseforge page.
Head over to the Game Panel and stop your server.
Navigate to the Addons → Mods tab and download the mods you'd like.
Download and Install the mod version that is compatible with your server's game version.
Start your server and take a look at the server's console to make sure the mod(s) started up correctly.
If your server crashes after adding the mod(s) then you might be missing some mod dependencies.
Download and install the mod dependencies if needed and start your server up again.
Congratulations, you've successfully installed mods onto your server. If you have any issues or concerns, please contact us through the ticket system.
Head over to the Game Panel and stop your server.
Navigate to the mods folder in your Files tab.
Upload your mods into the mods folder by dragging the mods.
Start up your server and make sure your mod loads up correctly.
Congratulations, you've successfully installed mods onto your server. If you have any issues or concerns, please contact us through the ticket system.
