diff --git a/backup/wp_backup.sh b/backup/wp_backup.sh
index 1901bb3..d5788b1 100644
--- a/backup/wp_backup.sh
+++ b/backup/wp_backup.sh
@@ -56,10 +56,20 @@ collect_variables() {
     echo "----------------------------------------"
     
     # Database name
-    read -p "Enter database name: " DATABASE
+    while [ -z "$DATABASE" ]; do
+        read -r -p "Enter database name: " DATABASE
+        if [ -z "$DATABASE" ]; then
+            echo "Database name cannot be empty. Please try again."
+        fi
+    done
     
     # WordPress directory
-    read -p "Enter WordPress installation path (e.g., /home/username/htdocs/domain.com): " WP_DIR
+    while [ -z "$WP_DIR" ]; do
+        read -r -p "Enter WordPress installation path (e.g., /home/username/htdocs/domain.com): " WP_DIR
+        if [ -z "$WP_DIR" ]; then
+            echo "WordPress path cannot be empty. Please try again."
+        fi
+    done
     
     # Derive WordPress content directories
     UPLOADS_DIR="${WP_DIR}/wp-content/uploads"
@@ -69,7 +79,12 @@ collect_variables() {
     
     echo -e "\nBackup Locations:"
     # Scripts directory
-    read -p "Enter scripts directory path (e.g., /home/username/scripts): " SCRIPTS_DIR
+    while [ -z "$SCRIPTS_DIR" ]; do
+        read -r -p "Enter scripts directory path (e.g., /home/username/scripts): " SCRIPTS_DIR
+        if [ -z "$SCRIPTS_DIR" ]; then
+            echo "Scripts directory path cannot be empty. Please try again."
+        fi
+    done
     
     # Backup directory
     BACKUP_DIR="${SCRIPTS_DIR}/backups"
@@ -79,12 +94,29 @@ collect_variables() {
     # S3cmd path
     S3_CMD="/usr/local/bin/s3cmd"
     if [ ! -f "$S3_CMD" ]; then
-        read -p "s3cmd not found at default location. Enter s3cmd path: " S3_CMD
+        while [ ! -f "$S3_CMD" ]; do
+            read -r -p "s3cmd not found at default location. Enter s3cmd path: " S3_CMD
+            if [ ! -f "$S3_CMD" ]; then
+                echo "Invalid path. File does not exist. Please try again."
+            fi
+        done
     fi
     
     # S3 bucket information
-    read -p "Enter S3 bucket name (e.g., my-bucket): " S3_BUCKET_NAME
-    read -p "Enter S3 folder name (e.g., backups): " S3_FOLDER_NAME
+    while [ -z "$S3_BUCKET_NAME" ]; do
+        read -r -p "Enter S3 bucket name (e.g., my-bucket): " S3_BUCKET_NAME
+        if [ -z "$S3_BUCKET_NAME" ]; then
+            echo "S3 bucket name cannot be empty. Please try again."
+        fi
+    done
+    
+    while [ -z "$S3_FOLDER_NAME" ]; do
+        read -r -p "Enter S3 folder name (e.g., backups): " S3_FOLDER_NAME
+        if [ -z "$S3_FOLDER_NAME" ]; then
+            echo "S3 folder name cannot be empty. Please try again."
+        fi
+    done
+    
     S3_BUCKET="s3://${S3_BUCKET_NAME}/${S3_FOLDER_NAME}/"
     
     # Current date for backup naming