Error code 503 can mean different things depending on what you are doing when the error occurs. Most often you can see the error when signing a document or when you are creating a new case file in Penneo.
Signing documents
Should you experience this error while signing or reading your documents, it is because of a communication error with the server. To fix it, simply reload the page by pressing F5 on your keyboard or the reload function in your browser.
Creating a case file
If you are creating a case file and experience this error, the error occurs because our system cannot work with the PDF's that you are attempting to upload, see What files can I upload to Penneo? This is typically fixed by printing a new version of your PDF. To print a PDF open the file, click on the print option and change the printer to Save as PDF, print the file and save it. Try uploading the new PDF to Penneo.
We also recommend using Penneo's own PDF printer, see Introduction to the Penneo Printer. If the problem persists, contact customer support here.