Meta has flagged your product as falling into a restricted category — common offenders include weapons, tobacco/vaping, supplements making health claims, adult products, and CBD. Some categories are outright banned; others need pre-approval.
Meta runs an ML classifier across product titles, descriptions, and images. Trigger words ("detox", "miracle", "pre-roll", "unregulated") in copy can wrongly classify a benign product. Sometimes the image alone (e.g., a knife photo) triggers it.