I see their website is also down for some reason, but have you tried sending them email or talking with them in some other way?
They have campaign in forum and manager also needs to explain what is happening.
Clearnet has been down for quite a bit, even while they were active in here. Tor is still up.
The campaign manager is responsible for… managing the campaign. Nothing to do with their downtime or even (hopefully not) potential exit scam.