Kemper player into an amp head

I was on tour using a backline provided by the opening band. I brought my Kemper player so that I could use my own tones.
I was running the Player left output into the effects return of the amp that the band provided.
Was this the correct way to use it?
The reason I'm asking is because after a couple of weeks the player started giving me problems and I had to replace it.
I'm getting ready to go out again and want to make sure I'm doing it right.

Thanks in advance.