Mods and Plugins
Before installing mods or plugins on your server, you need to ensure you are using the correct files for your mod or plugin software. Below, you can find some simple rules to help you confirm what file type you need to use.
General Minecraft Software Rules:
Vanilla Minecraftcan loadMinecraft(Not mods and not plugins).Bukkit-based Minecraftcan loadplugins(Not mods).Forge-based Minecraftcan loadmods(Not plugins).Hybrid softwarecan loadmods and plugins; however, depending on which software you opt for is unsupported, deprecated and unstable.
1.10.x+ mod servers can use SpongeForge to load plugins.
Unable to open file stream
The plugins and mods directory is created when the server is first run with the appropriate folder. If you get the error Unable to open file stream (or similar) when attempting to install mods/ plugins via the mods/ plugins menu, this means the CreeperPanel cannot find the folder to install to.
To avoid this error, make sure your server has the appropriate directories setup by starting the software via the console first.
You can use the Files menu, or sFTP/SSH to create a mods/plugins folder manually. however, if you do not have the correct software (mentioned at the top of this page) installed, you will be unable to load those mods or plugins.