Valuation Rate and Avg Rate not Match on ERPNext: v14.46.7

I got an error from stock ledger where valuation rate & avg rate did not match in purchase receipt, but before I closed the accounting period. Hence, on my general ledger appears another account to throw the difference between Stock Ledger & General Ledger. Please Help me why this is happen to me ?!

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Check if there are any pending revaluation transactions.