[HELP] Stack Traceback error

Error running call reference function for resource esx_policejob: citizen:/scripting/lua/scheduler.lua:403: @esx_policejob/server/main.lua:202: attempt to index a nil value (local 'xPlayer')
stack traceback:
@esx_policejob/server/main.lua:202: in upvalue 'ref'
citizen:/scripting/lua/scheduler.lua:389: in function citizen:/scripting/lua/scheduler.lua:388
[C]: in function 'xpcall'
citizen:/scripting/lua/scheduler.lua:388: in function citizen:/scripting/lua/scheduler.lua:387
stack traceback:
[C]: in function 'error'
citizen:/scripting/lua/scheduler.lua:403: in function citizen:/scripting/lua/scheduler.lua:372
Error running system event handling function for resource es_extended: citizen:/scripting/lua/scheduler.lua:41: Failed to execute thread: citizen:/scripting/lua/MessagePack.lua:830: missing bytes
stack traceback:
[C]: in function 'error'
citizen:/scripting/lua/MessagePack.lua:830: in method 'underflow'
citizen:/scripting/lua/MessagePack.lua:465: in field 'any'
citizen:/scripting/lua/MessagePack.lua:860: in field 'unpack'
citizen:/scripting/lua/scheduler.lua:626: in field '?'
@es_extended/server/functions.lua:33: in field 'TriggerServerCallback'
@es_extended/server/common.lua:88: 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

everything work fine but today i got this error

any idea ?? i try to fix it by myself it still got stuck