I am not accessing my python ongoing course

Describe your issue

Hello CodeChef, I am student of SVERI COEP, Pandharpur. I recently started python with oops course, I completed almost 20% of the course.
but due to some family function reason, i was not able to open the platform for a week.
but now i open it show ERROR? why? it tells start from beginning!! I solved near about 109 questions.

PLEASE HELP ME!!

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