Figure out what version of Forge Mod Loader you’d like. Depending on the mods you want to install you may need a particular version.
Go to; https://files.minecraftforge.net/
and download the Installer (windows) for the version you need.
Run the Installer for Server, install Forge Mod Loader to a folder you’ll be able to find.
Once the install is completed, open the folder you installed Forge Mod Loader to.
Rename the minecraftforge-universal-XXXX.jar file to minecraft_server.jar
Create a .zip file of the libraries folder, the minecraft_server_forgeVersion.jar and the minecraft_server.jar that you just renamed.
Login to your Control Panel for your Minecraft Server at http://panel.uhostpro.com
Navigate to the File Manager for your server and rename the Minecraft folder to MinecraftVanilla
Create a new folder called Minecraft
Navigate inside the Minecraft folder you just created.
Upload your .zip file containing the forge mod loader files.
Use the Extract tool in the Actions Column to extract the .zip file.
Delete the .zip file once all the files have been extracted.
Start your Minecraft Server.
Any trouble with this guide, please contact support