I am using DarkRPG 1.0 addon along with these others http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=806806862
[ERROR] A runtime error has occurred in "lua/darkrp_modules/levels/sv_data.lua" on line 14.
The best help I can give you is this:

Warning! DarkRPVar 'xp' wasn't registered!
Please contact the author of the DarkRP Addon to fix this.
Until this is fixed you don't need to worry about anything. Everything will keep working.
It's just that registering DarkRPVars would make DarkRP faster.

Hints:
- No hints, sorry.

The responsibility for the error above lies with (the authors of) one (or more) of these files:
1. lua/darkrp_modules/levels/sv_data.lua on line 14
2. gamemodes/darkrp/gamemode/libraries/mysqlite/mysqlite.lua on line 305
3. lua/darkrp_modules/levels/sv_data.lua on line 14
4. lua/darkrp_modules/levels/sv_data.lua on line 23
5. lua/darkrp_modules/levels/sh_core.lua on line 200
6. lua/includes/modules/hook.lua on line 84
------- End of Simplerr error -------

[ERROR] A runtime error has occurred in "lua/darkrp_modules/levels/sv_data.lua" on line 14.
The best help I can give you is this:

Warning! DarkRPVar 'level' wasn't registered!
Please contact the author of the DarkRP Addon to fix this.
Until this is fixed you don't need to worry about anything. Everything will keep working.
It's just that registering DarkRPVars would make DarkRP faster.

Hints:
- No hints, sorry.

The responsibility for the error above lies with (the authors of) one (or more) of these files:
1. lua/darkrp_modules/levels/sv_data.lua on line 14
2. gamemodes/darkrp/gamemode/libraries/mysqlite/mysqlite.lua on line 305
3. lua/darkrp_modules/levels/sv_data.lua on line 14
4. lua/darkrp_modules/levels/sv_data.lua on line 23
5. lua/darkrp_modules/levels/sh_core.lua on line 200
6. lua/includes/modules/hook.lua on line 84
------- End of Simplerr error -------