diff --git a/README.md b/README.md
index ccdd7db..beacf1e 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Fullstack Web3 Template v2.1.0
+# Fullstack Web3 Template v2.2.0
 
 ## QuickStart
 
diff --git a/smartcontracts/src/Counter.sol b/smartcontracts/src/Counter.sol
index 95e936b..92a7f51 100644
--- a/smartcontracts/src/Counter.sol
+++ b/smartcontracts/src/Counter.sol
@@ -11,4 +11,10 @@ contract Counter {
     function increment() public {
         number++;
     }
+
+    error CustomError(string message, uint256 yourAmount);
+
+    function getError(uint256 yourAmount) public pure returns (string memory) {
+        revert CustomError("An error occurred", yourAmount);
+    }
 }