Well from the Mayor of Porreres has said - " Ms Mora pointed out that jam is also one of Porreres' local specialities. 'We have the best jam in the world,' she said, adding that 'the farmers will be happy' if Meghan decides to market the town's jam." thanks @BasiliskStare .
Actually, if M had any savvy she could turn this into a positive. Trip to Porreres (which looks jolly nice) with cameras, meet the mayor, meet local farmers/jam producers, maybe even develop a line with them to sell (as clearly the homespun "made it myself" approach is canned) learn a bit about local cooking, show off the town (they've got Salvador Dalis on display, not bad for a place of 5000 people) Maybe a bit about how she accidentally designed something that closely resembled their crest, apologies, so glad this act of serendipity has lead to her visiting such a beautiful place. Donation to local charity.
I'm not sure she could pull this off though, TBH and is of course much more likely to ignore the whole thing.