d83e8167ce6dd68f2ac47750de5248b568177e Mon Sep 17 00:00:00 2001
From: login
Date: Sat, 14 May 2022 20:04:32 +0000
Subject: Checking for empty key in pcoin

pcoin now checks if an empty key was entered, and sends a different error message and error code for empty key as compared to incorrect key.
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