fix: 7862 invalid address error

app/util/address/index.js

@@ -171,11 +171,11 @@ export function isQRHardwareAccount(address) {
  * get address's kerying
  *
  * @param {String} address - String corresponding to an address
- * @returns {Keyring} - Returns address's account keyriong
+ * @returns {Keyring | undefined} - Returns address's account keyriong if keyring found, otherwise return undefined
  */
 export function getKeyringByAddress(address) {
   if (!isValidHexAddress(address)) {
-    throw new Error(`Invalid address: ${address}`);
+    return undefined;
   }
   const { KeyringController } = Engine.context;
   const { keyrings } = KeyringController.state;

app/util/address/index.test.ts

@@ -247,10 +247,11 @@ describe('isQRHardwareAccount', () => {
   });
 });
 describe('getKeyringByAddress', () => {
-  it('should throw an error if argument address is undefined', () => {
-    expect(() => getKeyringByAddress(undefined as any)).toThrow(
-      'Invalid address: undefined',
-    );
+  it('should return undefined if argument address is undefined', () => {
+    expect(getKeyringByAddress(undefined as any)).toBeUndefined();
+  });
+  it('should return undefined if argument address is not hex address', () => {
+    expect(getKeyringByAddress('ens.eth')).toBeUndefined();
   });
   it('should return address if found', () => {
     expect(