@ezekudene If you have installed SSL certificate correctly then no issues with HTTPS. Your site is tagged as ‘Dangerous’ by Google, possibly due to malicious activity, content violations, etc., and its not related to SSL. You’ll need to resolve the issue and request a review as explained here – https://support.google.com/webmasters/answer/6347750?hl=en
Please consider updating the review if our response was helpful.
