[Cin] https://cinelerra-gg.org/download/ throws Error code: SSL_ERROR_BAD_CERT_DOMAIN

[W P]

Hi, I don't know if it me but when I access https://cinelerra-gg.org/download/ I get Error code: SSL_ERROR_BAD_CERT_DOMAIN and FF recommends to leave the site saying "Firefox detected a potential security threat and did not continue to cinelerra-gg.org. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details". What is going on? Is it a problem or someone tempered with the site? 
https://cinelerra-gg.org is fine however in the warning messages https://cinelerra-gg.org it is mentioned as well.
Screenshot: https://imgur.com/qdvbzI3

I am on FF 70.0.1 (64-bit) Linux