Garry's Mod Server Standard Sandbox Tools dissapearing upon Server Startup

Hello, as of recently, I bought a server with a gamemode of, “DarkRP” and I’ve been having a problem with the gmod standard sandbox tools dissapearing. Things like the entire tool menu dissapears when I install mods to it and create errors within the console. I’m not sure how to fix this as I currently need help with it. Any time/form of help would be appreciated. Thank you.

What are the console errors?

You have too many addons/lua files.

Well, I would like to add more stuff to my server, but it wont let me. That’s a bit of problem, can that be fixed or is it just something I’ll have to deal with?

The .lua file limit is 2048 AFAIK, deal with it.

Ok, thank you.