SALES ALMOST ZERO AFTER ADOBE UNSUSPENDED ME

My sales have also dropped by 3 times. The account was blocked for 3 weeks, and I also deleted about 400 AI pictures. The main top pictures are now somewhere at the bottom of the search.

You can't fix it. You will wait for moving again in front of the pack. As you have sales, that will happen soon. Sales should increase slowly to the level before the suspension (with all possible fluctuation). If you needed to remove assets, that may have also influenced negatively your standing.

While no one outside of Adobe knows exactly how the search algorithm works, I believe that since your images were offline for a while, they sank in popularity. Many Buyers user the filters to sort the results by "most recent" and "downloads". It will probably take a while for you to regain the previous sales level. Meanwhile, continue to upload new assets so that your account will have fresh work.