@Lorena50
Possibly a couple of things Lorena. You cancelled a guests reservation and that is a big deal no, no!! You must never cancel a confirmed guest booking. With only 2 reviews and that cancellation you have nowhere to hide from that one.
The other possibility is have you declined a few reservation or enquiry requests. Airbnb will once again punish you by suspending your listing if they feel you are declining too many enquiries with out good reason.
Sorry you are experiencing a bit of a bumpy start but try to read up on a few of the rules of Airbnb hosting and it should get better.
Cheers.....Rob