Been trying to contact them for 8 months.
2020/07/09 - Tried to have a contact with them. I used Twitter Proof but it feels like they’re not using that account anymore.
2020/07/13 - Reported to Hackerone, hopefully they will find a way. (Texted me two messages and then I got ghosted, participant has been removed.)
2021/04/17 - Second try with Twitter and contacting devs or admins via name.com