Correlation id unknown

[jt18_]

Hey,

I entered the Express checkout with the paypal button in my application and everything was working perfectly until the day that nothing worked. Each time I try to get an access token and then create a payment it returns me an Internal Server Error (500) and a correlation id unknown.

What do I have to do to get back to work?

Thank you.

[Bisss]

same here, work in local, but not on my server