Conection Errors

I have been through the steps Dashboard and appearance and I am currently stuck at the with 12/12 tests passed. The App was live full working but suddenly is not connected with the woocomerce, Also give an error when you try to connect, When take the tests all are passed 12/12. I have dit everything from the beginning, rebuilt up, and uploaded a new version on app store but with no luck. Please can you help me