The issue is resolved by following these steps and thanks to Vipul.
1. Go to Administration > Access management > Operators.
2. Search for operator interaction.
3. Go to the Edit tab.
4. Open the Access rights side panel within it.
5. Click on Edit the access parameters.
6. Under the section List of trusted IP masks see if you have the entry 127.0.0.1. If not please add it and save the settings.
7 Logout from campaign console, log back in and test again.