Long story short: Eliza is not a reliable person and she doesn't keep her word.
Long story: The accommodation was no longer refundable in the day of check-in. Our flight had several delays (up to 3 hours) but in the end it was canceled. During all this time I was in contact with her (she also checked the flight status) and she assured me that there is no problem from her side and she will provide a partial refund or a reschedule but to also ask Airbnb. Airbnb told me that only the host can offer partial refund or a reschedule but when I have asked Eliza she told me that she is sorry but it's not her fault.
P.S. Of course it was not her fault but not mine either but a partial refund would have been the reasonable solution since I wasn't able to go to Malta and I did not benefit from any accommodation/service from her side.