diff --git a/server/plugins/asanServiceSerialChecker.js b/server/plugins/asanServiceSerialChecker.js
index 58eb12d..265480f 100644
--- a/server/plugins/asanServiceSerialChecker.js
+++ b/server/plugins/asanServiceSerialChecker.js
@@ -14,7 +14,7 @@ const serialChecker = async (serial, type = 'guaranteeSerial', g = 1) => {
 
     try {
       const serialFiles = await fs.readdirSync(exelsPath);
-       if((serialFiles?.length) <= 1){
+       if((serialFiles?.length) <= 0){
           rej("این کد در سامانه موجود نیست")
         }
       serialFiles.forEach(async(file, i)=>{