[ERROR] A runtime error has occurred in "gamemodes/darkrp/gamemode/modules/workarounds/sh_workarounds.lua" on line 190.

Attempt to get UniqueID of non-existing player

Hints:
    - No hints, sorry.

The responsibility for this error lies with (the authors of) one (or more) of these files:
    1. gamemodes/darkrp/gamemode/modules/workarounds/sh_workarounds.lua on line 190
    2. addons/levelup/lua/autorun/levelup/libraries/database/sv_database.lua on line 24
    3. addons/levelup/lua/autorun/levelup/libraries/core/sv_core.lua on line 62
------- End of Simplerr error