I don't know your entire code, but the events
property asks for events in the array.
["1", "2", "3", "4", "5", "6", "7", "8", "9", "10"].map((farm: string)
Sends an array so you have an array of sub-arrays...
Do instead
...["1", "2", "3", "4", "5", "6", "7", "8", "9", "10"].map((farm: string)