Probably some obscure thing nobody knows or cares about it. I just searched "333 current" on multiple search engines and all it shows is a music video and a Reddit thread where somebody asks about it, and people answer with jewish occultism BS and Crowley (who was not a Satanist) crap. There's zero info about it and all the other search results are irrelevant.
Don't expect anybody else to answer because probably nobody has heard about that. Although if it has to do with Crowley or based on the jewish kabbalah and other jewish occultism crap, we are against it as we don't have to do with anything hebrew/jewish.