diff --git a/Containers/mastercontainer/session-deduplicator.sh b/Containers/mastercontainer/session-deduplicator.sh
index 4326090a..796ccb54 100644
--- a/Containers/mastercontainer/session-deduplicator.sh
+++ b/Containers/mastercontainer/session-deduplicator.sh
@@ -2,15 +2,18 @@
 
 while true; do
     while [ "$(find "/mnt/docker-aio-config/session/" -mindepth 1 -exec grep "aio_authenticated|[a-z]:1" {} \; | wc -l)" -gt 1 ]; do
+        # First delete all session files that are not authenticated
         unset SESSION_FILES
         SESSION_FILES="$(find "/mnt/docker-aio-config/session/" -mindepth 1)"
         unset SESSION_FILES_ARRAY
         mapfile -t SESSION_FILES_ARRAY <<< "$SESSION_FILES"
         for SESSION_FILE in "${SESSION_FILES_ARRAY[@]}"; do
-            if ! grep -q "aio_authenticated|[a-z]:1" "$SESSION_FILE"; then
+            if [ -f "$SESSION_FILE" ] && ! grep -q "aio_authenticated|[a-z]:1" "$SESSION_FILE"; then
                 rm "$SESSION_FILE"
             fi
         done
+
+        # Second clean up all sessions that are authenticated
         echo "Deleting duplicate sessions"
         unset OLDEST_FILE
         set -x