Husqvarna LTH1542- quit running while mowing

My wife was mowing the grass and our Husqvarna LTH1542 just quit running. I went to check on it....I turn the key and nothing....won't turn over, no click...nothing. Full tank of gas...brand new battery 2 months back. Battery connection is solid. Can any of you offer any insight on what I should check?

Thank you for any help you can offer me!

Brian