Instant pricing not correct on my listing

[Kimberly17]

Hello.  Recently, my listing has started showing a instant pricing rate of £49, but even in low season, my lowest rate is £55.  I don't understand why it is showing a lower rate by the instant booking icon, especially as it isn't a rate I even offer.

https://www.airbnb.co.uk/rooms/9545739

Many thanks in advance for any help fixing this.

Kim