Server help!

Im trying to make a darkrp server, all files set to go correctly, followed mutliple guides, none worked, always the same issue:

Couldnt set active gamemode - “darkrp”

Ive been searching for nearly 2 hours with nothing, i either want to see if i can get help for this, or if anyone knows any trial gmod servers, as i want to test out darkrp on a private server with some friends!

Things ive tried:

Rename DarkRP folder to darkrp
Download Counter Strike
Set the mounts
Set the server cfg
Recopy the Darkrp files, and different ones
Use file directly and using a BAT
Googling, using guides and videos

Where is the DarkRP folder located? Also, post your startup.bat.

DarkRP folder is located in the gamemodes folder

My startup bat is:

srcds.exe -console -game garrysmod +map rp_downtown_v4c +gamemode darkrp