IAP status is "In Review" more than 12 hours

Hello, I prepared my IAPs and sent to review on Monday around 3:00 AM. Their status have been changed to "In Review" around 10:00 PM on Monday. Now, today is Tuesday, 12:20 PM and their status still looks "In Review". More than 12 hours they are in review. Why this happens?
IAP status is "In Review" more than 12 hours
 
 
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