In order to check if your website is penalized with a Manual Penalty, check the Google Search Console's Manual Actions section.
If the domain doesn't show up in the search results at all for a search query for the domain name, it may be banned in Google.
If the domain name or web page won't show up for a search query using your title tag in quotes, then it's most likely having an issue--and a penalty of some sort is present.
SEO since 1996, I've been doing internet marketing. I have the experience as an SEO expert
, as well.