"He has a microchip and a tracker collar on. The collar has only pinged 2x when it normally pings once an hour. I’m worried something happened to him or someone disabled the collar. He’s very sweet and friendly!! Please help me find him"
11/12 lbs, green eyes, may be still wearing his white Velcro tracker collar
Please read that link I put in my comment. It talks about indoor/outdoor cats being chased out of their area and how to find them.
I hope you will keep him indoors if you get him back. There are more dangers than you might realize even if a cat stays in your yard. Foxes will chase your cat out of its known territory where he will then be lost, or perhaps chase them into a busy street. Fences do not keep foxes and coyotes out of your yard. People use rat and mice poison in their garages, etc., then cats eat the mice. A neighbor might not like the cat being outside so will take it in. I’m very sorry, I am just hoping you will keep him indoors where he is safe. I hope he is okay and you find him soon.