long story short, my website had a malware and was hacked and many pages were redirected somewhere, for few days until i discovered it, later on, i upgraded my version of prestashop for better security, and now after everything was set up and good, bing deindexed me, like a month later, which is weird.
yes i have blocked some url i found that the hacker used for redirects, it was example.com/products/ , i found it in the section of site explorer in bing, while it doesnt even exist anymore, and while i have no directory which is called "products" so i blocked it. that was all, so do you think the block of example.com/products/ is what affecting it? and the blocked affected the whole domain? though, if you do an audit now, nothing bad is there and everything is just good.