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You need permission to access this document

Hi, I was using the zoho docs tool. And whilst I was doing my work it asked me to log in. I didn’t have an account so I signed up and after the signing up process it asked me to confirm my email which i did. When I did it then took me to a screen saying you need permission to access this doc and stayed there. Any solutions?? I really need the doc as it for an important work that is due on the 13th.