Yes, I have the same problem
Espi
(@josheprovoedu)
Greetings!
I ran across this same problem today when we made the switch to complete HTTPS on our site. I found a solution to our problem, and I hope it will also help you.
Since we are HTTPS everywhere and we no longer allow HTTP traffic. we actually just redirected over to HTTPS. by default this plugin uses a basic http API(I’m not actually sure what one) to check links. If you are switching to 100% https you’ll want to go disable that.
To disable that API you will go into the broken link checker settings > Protocols & APIs tab > uncheck the box that says Basic HTTP. Then his save.
This solved our problem and I hope it solves yours as well.
Thanks