I'm in NO way a lawyer but here's my thoughts.....Odd's are it's not legal but I'm guessing that the server is hosted in a country that makes it hard to take down and the company behind it is a shell company in Panama. You can try to sue them claiming copyright, trademark, GDPR, DMCA, etc. but if they don't want to comply and aren't in the US or EU...you might not have any results. Here are some links that might help:

Cam Model Protection - https://cammodelprotection.com/
Rulta - https://www.rulta.com/
GDPR - https://gdpr.eu/what-is-gdpr/
DMCA - https://www.copyright.gov/dmca/
Privacy Rights - https://privacyrights.org
Storm DMCA - https://stormdmca.com/
DMCA Badges - https://www.dmca.com/badges.aspx