Help cant play maps from steamworkshop

[jacksnapes21]

Hello all,

I have been searching for this problem for 2 days, I have also read it on archived. but I have not found a solution.

so every time I download map from steamworkshop using --> https://steamworkshopdownloader.io/ (Steam Workshop Downloader :: IO)

after use command because map not show up on workshop map

game_type 3
"map mapname"
or "map mapname custom"

everything is broken.. like this
CModelLoader::Map_IsValid: 'maps\aimtraindriving_sf.bsp' is not a valid BSP file
map load failed: aimtraindriving_sf not found or invalid

my warzone still up-to-date too 1.37.5.1
I'm satisfied that I only fight with hard-expert bots, so I have no desire to buy on Steam and play online

Thanks