How to fix?

Q: while hammering on the server, it crashes me and "missing maps" pops up

It will tell you how to fix it, there are several ways to fix this error,
what will we need?
- garry's mod console

Now he will write all the ways in points

1. Method:
- Enable consoles in garry's mod
- Enter in the console "menu_cleanupgms"
- Turn off the game
- We turn on the game and try to connect the server

2. Method:
- Uninstall addon "rp_site_unknown"
- Download addon "rp_site_unknown"
- Turn off Gmod
- Turn on Gmod
- And try to connect the server

3. Method:
- Uninstall addon "rp_site_unknown"
- Enter the console "menu_cleanupgms"
- Download the map from the workshop or from the collection
- And try to connect the server

4. Method:
- Uninstall addon "rp_site_unknown"
- Enter the console "menu_cleanupgms"
- Turn off Gmod
- Turn on Gmod
- Download the map from the workshop or from
collection
-And try to connect the server

If you still have a problem, check if everything has been done correctly.