I've been working on a screen for a few days, and it has been working properly up until now. After making a few changes, clicking on the tab link that leads to the screen shows the following error message: "We were unable to resolve your request. Either the screen you are trying to access does not exist, or there was a problem with your request". The only things I did on the page was add a new grid, and a few buttons. The screen cannot be viewed by going to Customize --> Screens --> View for that specific screen as I get the same error message. Is there anything that may have caused the page to stop functioning/loading when it was working fine before the few changes?
EDIT: To clarify, I am working on a page to edit an existing case, and the table I added was the Documents table, and added buttons for "Link existing document", "Add new document", and one that hides/clears/shows fields on the screen