There seems to be a problem with modifying projects

Currently, when I try to delete old documents from a project, it just spins and spins and never deletes them. When I try to add word documents, it won’t upload. It goes almost all the way uploaded, but never finishes. If I try to rename a project, I get an error that says ‘Internal Server Error’. If I try to create a new project, I get the same error. I have the Pro subscription. What do you think is happening?