Map different from the server's

I’m creating my own DarkRP server and I’m having this problem.

“Your map [maps/rp_evocity_v33x.bsp] differs from the server’s.”

I don’t want to delete the map cause I have already spawned all NPC’s and Props.

Permaprop items save in the server data, they won’t be removed.

You have another version of the map downloaded than the one that the server is using. Try removing your version of the map or to install the same version of the map that the server uses.

Go to your steam folder my directory is D:\SteamLibrary\steamapps\common\GarrysMod\garrysmod\maps yours might be similar, after you go to the Garry’s Mod maps folder remove it from your client, then download the version you have inside of your server, then you won’t get the error when getting in your server.