error vrp_garages

Error running system event handling function for resource vrp_garages: citizen:/scripting/lua/scheduler.lua:41: Failed to execute thread: server.lua:80: attempt to index a nil value (field '?')
stack traceback:
server.lua:80: in local 'cb'
[string "-- begin MySQL module..."]:45: in upvalue 'handler'
citizen:/scripting/lua/scheduler.lua:219: in function <citizen:/scripting/lua/scheduler.lua:218>
stack traceback:
[C]: in function 'error'
citizen:/scripting/lua/scheduler.lua:41: in field 'CreateThreadNow'
citizen:/scripting/lua/scheduler.lua:218: in function <citizen:/scripting/lua/scheduler.lua:182>