Fans worried after Girl Group CRAXY Instagram and Youtube content deleted
That would be very sudden! They were releasing content fairly regularly, and content that promised more to come for the future. Maybe the agency was living a long time on the verge of bankruptcy, having to spend everything that came in and more, and just kept content coming in the hope of things turning around. But then they suddenly had to admit that the pile of unpaid bills just grew to high and that they couldn't go on anymore, so they decided to shut down.
Rebranding? Why would a group which is very distinct from other K-pop groups rebrand? Why would they need to erase all the content for the sake of rebranding? Even if they were changing direction a little, it wouldn't require wiping everything. I doubt a group like Craxy would rebrand so much that this would be needed.