diff --git a/src/quota/tokenCount.ts b/src/quota/tokenCount.ts
index 263ba13..47e9e99 100644
--- a/src/quota/tokenCount.ts
+++ b/src/quota/tokenCount.ts
@@ -51,12 +51,13 @@ export default class tokenCount implements IQuota {
       }
     }))._sum;
 
-    if (!usedTokens.usageRequest || !usedTokens.usageResponse) throw new Error("Null from a database!! (tokenCount Quota)");
+    const usageRequest = usedTokens.usageRequest === null ? 0 : usedTokens.usageRequest;
+    const usageResponse = usedTokens.usageResponse === null ? 0 : usedTokens.usageResponse;
 
     const usedUnits = (() => {
       if (this.considerInputTokensAsHalf)
-        return usedTokens.usageResponse + usedTokens.usageRequest / 2;
-      return usedTokens.usageResponse + usedTokens.usageRequest;
+        return usageResponse + usageRequest / 2;
+      return usageResponse + usageRequest;
     })();
 
     if (userQuota?.vip) return this.createUserQuotaData(Infinity, usedUnits);