After migration to new host, sales seem to be down

I recently migrated a website to a new host, Liquidweb TO WPEngine, and everything went totally smoothly. However, sales seem to be way down after the migration. I cannot seem to isolate any sort of a problem. I’ve submitted test orders using various proxies/VPNs without issue. Yesterday sales were more or less normal. This morning they seem low. Any ideas as to what could be wrong? Thanks so much

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