sending discord notification if changes in bash output (will be put in a cron)

I need to recieve a discord notification if this command does not have the string "No differences discovered" in the last 2 lines of the output. Ive been at it for hours I dont get it! and NO i do not know what amass says if there is a difference.

#!/bin/sh 

amass track -d beesy.me | grep "No differences discovered"

	if [[$? -eq 1]];  
		discord_notify "Changes in beesy.me domain!"