Ooh I’m not familiar with your tradition but I personally don’t place alot of weight on what AI says, the amount of times it has made a mountain out of a molehill with runes and made 1+1= 30000! is insane. I’m saying don’t panic.
If it was me I’d check out mundane factors first, are these snakes common, could it be an accident it got trapped etc, I mean if it’s hot it may have just tried to get in to cool down. I don’t view any animal as bad luck cuz they are also spirit guides so it could be a good omen. Snakes are good for journeying through other worlds and for transformation work within oneself, plus look at what other factors make you believe it’s bad luck. Once ruled that out, if you still feel it’s a spiritual/omen problem, I’d speak to a practitioner of your practice, or research the library, I wouldn’t rely on AI. AI grabs bits of information from all over and bakes it into a giant gumbo. I’ve asked it questions on Nordic witchcraft, the Eddas, the gods, my traditions to test it and boy does it come up with alot of crap 
Go with your intuition and advise from practioners of this stuff and be careful not to get swindled. Curses are really rare and if you cleanse your house, invoke your gods, they rarely work. Here’s a Nordic curse clearing spell if you want to try it.
https://forum.spells8.com/t/how-to-avoid-break-any-curse-norse-magick/49159?u=tracys
If you key in curse in the search there’s loads more spells to try.
You are stronger than any magic spells by the way. 
Here’s a little short how not to let any fear get the better of you.
(Ps this is also what djinn do, they protect the person they’re aligned with from any bad juju 
as per our previous chat.)
Skal 
Edit: This may help to