I'm having an issue with PDF Services API for the past 2 hours, there is a massive delay in responses and sometimes I'm getting this error message: Forbidden, due to lack of authorization or entitlements

I'm having an issue with PDF Services API for the past 2 hours, there is a massive delay in responses and sometimes I'm getting this error message:

UPLOAD failed for  with error: Unable to upload file: {"error":{"code":"Forbidden","message":"Forbidden, due to lack of authorization or entitlements. This is a permanent condition; refreshing the authorization token will not change the result."}}