Ap didn’t work - error messages upon install. Even the download link for the app att the PayPal site just goes to an error page. Support did not respond

It stared find , but after using it for few days it when away , I try to re-installed a few times with no luck , it will be nice to get it back to work on my site .
www.usawidgetts.com

If you want to lose sales please install this app. What a crap because of this I lost almost 20 orders it doesn't login the user and thus they leave. :(

This app changed a setting in my PayPal account that effectively blocked incoming international payments. International customers were unable to complete purchases using PayPal. I had no idea and could not figure out what the issue was and lost sales because of it. Finally had a customer patient enough to describe her experience in attempting to check out... I provided the info to PayPal and was told about the changed setting which coincided with the day I downloaded this App. Beware of this. Not happy.

It doesn't work with my online shop. I did everything as the instruction mentioned but I cannot see the banner.