To change your servers difficulty, log into LYHMEPanel, select and stop your Unturned Server, then follow these steps:

1. Click on "Configuration Files

2. Click on [Text Editor] Across from Commands.dat  

3. On a new row, type the following (TIP: You can find your steam64id at: http://steamid.io/) :

owner "steam64id"

5. Once you are happy, click SAVE

6. Start your server