diff --git a/src/utils/reputation.ts b/src/utils/reputation.ts
index 5bea3f9..873fa5f 100644
--- a/src/utils/reputation.ts
+++ b/src/utils/reputation.ts
@@ -55,6 +55,8 @@ function convertRange(value: number, currentMin: number, currentMax: number, tar
 }
 
 export function calculateReputationFromMetrics(metrics: ReputationDBResult): number {
+    if (!metrics) return 0;
+
     // Grace period
     if (metrics.totalSubmissions < 5) {
         return 0;