I have just the steps that'll help load the PayPal app.
After replicating this on my end using the test account, I also got stuck after I searched for Connect to PayPal. While I haven't received similar reports regarding this issue, I'm making it my top priority to let the Engineering Team know about this so we can quickly fix it.
Rest assured, even if we can't integrate the app, I have a quick and easy way to resolve this. We can use the Get Connected link in our awesome guide on how to Connect to Paypal.
Not only does this contain detailed steps on how to load the app, but it'll also let you go to the next step to complete this process. Just make sure you're logged into your QBO account before you click the link, to guarantee the system will detect the right account to connect to.
That should do it! I'm confident that you'll be able to load the PayPal app like a pro in no time with these resources.
I hope this response finds you with a smile today. Please don't hesitate to keep in touch with me if there's anything else I can do for you, I've always got your back. Thanks for reaching out, wishing you and your business all the best.