diff --git a/lib/reference-db.sh b/lib/reference-db.sh
index 6c70d33..a031350 100755
--- a/lib/reference-db.sh
+++ b/lib/reference-db.sh
@@ -211,9 +211,10 @@ build_databases_section() {
     # Query databases - set MYSQL_PWD only for this command
     local total_dbs
     if [ -n "$plesk_password" ]; then
-        total_dbs=$(MYSQL_PWD="$plesk_password" mysql -u admin -Ns -e "SHOW DATABASES" 2>/dev/null | grep -v "^information_schema$\|^mysql$\|^performance_schema$\|^sys$" | wc -l)
+        # Use || echo 0 to handle grep failure (when all databases are system databases)
+        total_dbs=$(MYSQL_PWD="$plesk_password" mysql -u admin -Ns -e "SHOW DATABASES" 2>/dev/null | grep -v "^information_schema$\|^mysql$\|^performance_schema$\|^sys$" | wc -l || echo 0)
     else
-        total_dbs=$(mysql -Ns -e "SHOW DATABASES" 2>/dev/null | grep -v "^information_schema$\|^mysql$\|^performance_schema$\|^sys$" | wc -l)
+        total_dbs=$(mysql -Ns -e "SHOW DATABASES" 2>/dev/null | grep -v "^information_schema$\|^mysql$\|^performance_schema$\|^sys$" | wc -l || echo 0)
     fi
     local current=0
 
@@ -221,9 +222,9 @@ build_databases_section() {
     # Get database list - set MYSQL_PWD only for this command
     local databases
     if [ -n "$plesk_password" ]; then
-        databases=$(MYSQL_PWD="$plesk_password" mysql -u admin -Ns -e "SHOW DATABASES" 2>/dev/null | grep -v "^information_schema$\|^mysql$\|^performance_schema$\|^sys$")
+        databases=$(MYSQL_PWD="$plesk_password" mysql -u admin -Ns -e "SHOW DATABASES" 2>/dev/null | grep -v "^information_schema$\|^mysql$\|^performance_schema$\|^sys$" || echo "")
     else
-        databases=$(mysql -Ns -e "SHOW DATABASES" 2>/dev/null | grep -v "^information_schema$\|^mysql$\|^performance_schema$\|^sys$")
+        databases=$(mysql -Ns -e "SHOW DATABASES" 2>/dev/null | grep -v "^information_schema$\|^mysql$\|^performance_schema$\|^sys$" || echo "")
     fi
 
     while IFS= read -r db; do