diff --git a/apps/sample-react-app/src/Hooks/useCounter.ts b/apps/sample-react-app/src/Hooks/useCounter.ts
index 628d349e..f4f8708b 100644
--- a/apps/sample-react-app/src/Hooks/useCounter.ts
+++ b/apps/sample-react-app/src/Hooks/useCounter.ts
@@ -31,6 +31,7 @@ interface UseCounter {
     increment: () => Promise<void>;
     status: IncrementStatus;
     address: string;
+    error: string | null;
 }
 
 export const useCounter = (): UseCounter => {
@@ -38,6 +39,7 @@ export const useCounter = (): UseCounter => {
 
     const [count, setCount] = useState<number>(0);
     const [status, setStatus] = useState<IncrementStatus>('idle');
+    const [error, setError] = useState<string | null>(null);
 
     const contract = useMemo(
         () => thor.account('0x8384738c995d49c5b692560ae688fc8b51af1059'),
@@ -55,22 +57,34 @@ export const useCounter = (): UseCounter => {
     }, [setValue]);
 
     const increment = useCallback(async (): Promise<void> => {
-        setStatus('in-wallet');
-
-        await contract
-            .method(_increment)
-            .transact()
-            .delegate('https://sponsor-testnet.vechain.energy/by/90')
-            .request();
-
-        setStatus('pending');
-
-        await thor.ticker().next();
-
-        await setValue()
-            .then(() => setStatus('idle'))
-            .catch(() => setStatus('error'));
+        setError(null);
+
+        try {
+            setStatus('in-wallet');
+
+            await contract
+                .method(_increment)
+                .transact()
+                .delegate('https://sponsor-testnet.vechain.energy/by/90')
+                .request();
+
+            setStatus('pending');
+
+            await thor.ticker().next();
+
+            await setValue()
+                .then(() => setStatus('idle'))
+                .catch(() => setStatus('error'));
+        } catch (e) {
+            setStatus('error');
+            if (e instanceof Error) {
+                setError(e.message);
+            } else {
+                setError('Unknown error');
+            }
+            throw e;
+        }
     }, [thor, contract, setValue]);
 
-    return { count, increment, status, address: contract.address };
+    return { count, increment, status, address: contract.address, error };
 };
diff --git a/apps/sample-react-app/src/Screens/components/Counter.tsx b/apps/sample-react-app/src/Screens/components/Counter.tsx
index a269a039..97b56f0c 100644
--- a/apps/sample-react-app/src/Screens/components/Counter.tsx
+++ b/apps/sample-react-app/src/Screens/components/Counter.tsx
@@ -19,7 +19,7 @@ import { AddressButton } from '../../Components';
 
 export const Counter = (): JSX.Element => {
     const { accountState } = useWallet();
-    const { count, increment, status, address } = useCounter();
+    const { count, increment, status, address, error } = useCounter();
     const toast = useToast();
 
     const incrementCounter = useCallback(() => {
@@ -65,7 +65,7 @@ export const Counter = (): JSX.Element => {
                 return (
                     <Alert status="error">
                         <AlertIcon />
-                        There was an unexpected error
+                        {error ? error : 'Unknown error'}
                     </Alert>
                 );
             case 'pending':
@@ -78,7 +78,7 @@ export const Counter = (): JSX.Element => {
             case 'idle':
                 return null;
         }
-    }, [status]);
+    }, [error, status]);
 
     return (
         <StyledCard h={['auto', 'auto', 'full']} p={4}>
diff --git a/packages/wallet-kit/src/signer-manager.ts b/packages/wallet-kit/src/signer-manager.ts
index 51060f96..1c075c18 100644
--- a/packages/wallet-kit/src/signer-manager.ts
+++ b/packages/wallet-kit/src/signer-manager.ts
@@ -28,6 +28,8 @@ class SignerManager implements ConnexSigner {
         if (signer) {
             await signer.disconnect?.();
         }
+
+        this.currentSource = undefined;
     }
 
     async signTx(