diff --git a/src/components/chain/BlockChain.js b/src/components/chain/BlockChain.js
index 6e8d8f1..5cf8d2a 100644
--- a/src/components/chain/BlockChain.js
+++ b/src/components/chain/BlockChain.js
@@ -126,6 +126,9 @@ export class BlockChain {
       const res = await this.wallet.getAccessToken();
       token = res.token
     }
+    if (!token) {
+      return ''
+    }
     
     return token+suffix
   }