it didn’t work.
This is not descriptive enough, sorry. If you need help, you really must try a bit harder. Grilling someone for info is no fun at all 
So what exactly does not work? Use Print String, Breakpoints, Watch pin values and use Debug Filter to observe data flow. Did you try any of this? Do you see any warning / error messages in the log?
What is Target Indicator - the enemy’s Widget Component? Do the nodes fire? Is the widget set up correctly?