Why am I seeing 'Suppressed' in SellerAmp's Buy Box Panel?

'SUPPRESSED' in the Buy Box Analysis Panel

'SUPPRESSED' indicates that Amazon sees the Buy Box price as unusually high or low, meaning no one gets the Buy Box and it is therefore not visible in the listing; the product listing is still available for customers to see and order from, at the cost of reduced visibility and potential sales.
SellerAmp Buy Box Analysis panel showing a suppressed Buy Box within a 90-day timeframe Amazon interface showing a 'See All Buying Options' button in the instance of a suppressed Buy Box.

For a tutorial on how to analyse Suppressed Amazon listings, please click here.