Hello friends,

How to remove Black-listed problem from website?

To remove a website from Google's blacklist and subsequently remove the security warnings from web browsers, you will need a verified Google Search Console account. Sign in to your account, and select the "Manual Actions" tab. If Google has detected a security issue with your website, it will list it there

The steps to submit your site for a review are:
Go to the Security Issues Tab. ...
Then select, I have fixed these issues.
Now, click on Request a Review.
Type about the steps taken by you to remove site from google blacklist. ...
Finally, click the Manual Actions section.
In case there are multiple issues.