Garry's Mod server Issues.

Hello, I've been running a server now for just about a few weeks now. I've never really experienced any developer error until now. Whenever I hit F4 to my jobs, it just says script error and puts this in console.
[ERROR] gamemodes/starwarsrp/gamemode/modules/base/cl_gamemode_functions.lua:23: attempt to index local 'jobTable' (a nil value)
1. Call - gamemodes/starwarsrp/gamemode/modules/base/cl_gamemode_functions.lua:23
2. unknown - gamemodes/starwarsrp/gamemode/modules/base/cl_gamemode_functions.lua:62



A fix for this would greatly be appreciated thank you.

Well learn some lua and follow the errors it is the best way to resolve this issue.