My all previous bookmarks are not there in the bookmarks section. Pls is it possible to bring it back the previous all bookmarks they were of very nice topics and detail explanation. Pls help moderators. (P.S. my reputation got reduced from 400+ to 101 for some reason)
Since the deletion seem to be rather recent, you could check your favorites using this SEDE query: Questions favorited by a specific user. (The questions won't be there after the next SEDE update, AFAICT the votes from deleted users are not stored in the SEDE database. So you'll see them there only this week. This is the status from the last update on this Sunday.)
At the moment, this query returns 44 result for the userid 900638.
Since SEDE still has your account in the users table, you can find also some other data about the old account. For example, a list of all questions and answers. But both questions and answers can be obtained from SEDE for deleted accounts, too.