What part of the country are you from? It is where they fill the " sinkhole" then pour a new apron. If you don't have a three foot section of concrete at the front of your garage door and it just starts with blacktop that's what you need . When I was living in MN that's what we had to do.

Thank you so much. You have nailed it. The sinkhole is right there. I will look into getting a new apron poured. I will let you know how it goes. I so appreciate the prompt response.

So happy to help! When you get estimates make sure they will tie it into the cement blocks underneath the poured concrete slab this is very important. Good luck = )