i upload my  custom map and got this flood my console the error is that : 
NullReferenceException: Object reference not set to an instance of an object
at NPCVendingMachine.Refill () [0x00074] in <d4735e3ae2d34f45b84c1cf24f1216dc>:0
at InvokeHandlerBase`1[T].DoTick () [0x00109] in <199e37458fcc4bb59ec150c8b2c90bd9>:0
at InvokeHandlerBase`1[T].LateUpdate () [0x0000c] in <199e37458fcc4bb59ec150c8b2c90bd9>:0

Sounds like you map has a vending machine that is not set up correctly.

Ok but how to solved this problem i try to delete vending machine and npc at custom prefabs but still in map on the server idk what to do this thing flooding my console
can u help me please

it most likley a invisable vending machine somewhere search in rustedit for it

i don't find them can i do a things that select all the vending machine automaticaly ? 

You dont remember where you placed all vending in your own map?

i just placed prefab that have already vending, but when i deleted them and reupload my map on my server the vending are still here and the flood too

yes cause the save file is holding onto the vending machine.  you most likley going to need to wipe map or del <prefab name>    to kill the prefab for the NPCVendingMachine