diff --git a/src/chain/blockchain.ts b/src/chain/blockchain.ts
index de42e76..b5ca101 100644
--- a/src/chain/blockchain.ts
+++ b/src/chain/blockchain.ts
@@ -215,8 +215,17 @@ export class Blockchain {
       provider = window.ethereum
       try {
         await provider.request({ method: 'eth_requestAccounts' })
-      } catch (error) {
-        throw new Error('User Rejected')
+      } catch (error: any) {
+        if (error.code === -32002) {
+          // const hexChainId = toHexChainId(this.currentChain)
+          // await provider.request({
+          //   method: 'wallet_switchEthereumChain',
+          //   params: [{ chainId: hexChainId }]
+          // })
+          throw new Error('MeatMask not login, Open MeatMask and login first')
+        } else {
+          throw new Error('User Rejected')
+        }
       }
     } else if (window.web3) {
       provider = window.web3.currentProvider