can't use NAV commands ingame

Hello guys, i’m trying to host a ZombieRP server, however, my map (CSDESERT_V1) is lacking a navigation mesh.
This is the addon that i’'m trying to incorporate into the server: http://steamcommunity.com/sharedfiles/filedetails/?id=380225333[url

nav_generate, nav_mark_walkable, and any nav commands appear to do nothing unless i’m using the server’s web console, which then causes a massive spam in my logs, followed by a crash.
Any help will be appreciated, thank you!

try hosting the map locally and generate the nav mesh then upload to server

Load the map in single player and generate the navmesh there, then upload it to the server