Aniwave and a bunch of other sites seem to have been shut down. They all have the same or similar goodbye messages replacing the site. People are speculating that its a major ACE crackdown, others are speculating that its a major hack. The closest thing to anything solid I’ve seen is that the mods of the discord are trying to reach the site devs/owners (https://imgur.com/uwBYLGg).
Aniwave mod says its gone for good. They recommend checking out theindex or everythingmoe to find an alternative, and avoiding any aniwave or 9anime site thats still up, as they are fakes. Reddit mod post