diff --git a/modules/performance/php-optimizer.sh b/modules/performance/php-optimizer.sh
index b53f581..97df25e 100755
--- a/modules/performance/php-optimizer.sh
+++ b/modules/performance/php-optimizer.sh
@@ -2672,7 +2672,7 @@ optimize_level_5_everything() {
 
     # Calculate server capacity for fair share allocation
     local server_capacity_result
-    server_capacity_result=$(calculate_server_capacity "$TOTAL_RAM_MB")
+    server_capacity_result=$(calculate_server_capacity "$total_ram_mb")
     local server_capacity
     server_capacity=$(echo "$server_capacity_result" | cut -d'|' -f1)
     local server_memory_per_process
@@ -2753,7 +2753,7 @@ optimize_level_5_everything() {
 
                 # Call intelligent three-constraint function
                 local intel_result
-                intel_result=$(calculate_optimal_php_settings_intelligent "$username" "$TOTAL_RAM_MB" "$server_capacity" "$traffic_pct" 2>/dev/null || echo "20|dynamic|1|5|ERROR|Failed")
+                intel_result=$(calculate_optimal_php_settings_intelligent "$username" "$total_ram_mb" "$server_capacity" "$traffic_pct" 2>/dev/null || echo "20|dynamic|1|5|ERROR|Failed")
 
                 recommended_max=$(echo "$intel_result" | cut -d'|' -f1)
                 recommended_memory=$(calculate_optimal_memory_limit "$username" "$domain" "$recommended_max" 2>/dev/null || echo "128M")