To change your servers map, 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. the third row down, it will appear as the following.

map PEI

4.
 Remove "PEI" This can be PEI, Washington, Yukon, Russia or Hawaii

5. Once you are happy, click SAVE

6. Start your server