Seem to be getting this error

[wrentrillogy]

Error running system event handling function for resource esx_slotmachine: citizen:/scripting/lua/scheduler.lua:41: Failed to execute thread: server.lua:10: attempt to compare number with table
[ 324125] stack traceback:
[ 324125] server.lua:10: in upvalue 'handler'
[ 324125] citizen:/scripting/lua/scheduler.lua:174: in function citizen:/scripting/lua/scheduler.lua:173
[ 324125] stack traceback:
[ 324125] [C]: in function 'error'
[ 324125] citizen:/scripting/lua/scheduler.lua:41: in field 'CreateThreadNow'
[ 324125] citizen:/scripting/lua/scheduler.lua:173: in function citizen:/scripting/lua/scheduler.lua:138
[ 325125] Error running system event handling function for resource esx_slotmachine: citizen:/scripting/lua/scheduler.lua:41: Failed to execute thread: server.lua:10: attempt to compare number with table
[ 325125] stack traceback:

Any ideas?