Click on ‘System’ from the options on the top bar and you will get the options:

An Integration Error:

An integration error appears when a third-party platform sends back a response code to Unbounce's servers, indicating that there might've been an issue with accepting the lead (from a form submission). Such errors can appear if there's an issue with the integration or how Unbounce is sending the information.    

• When you click on Integration error a new window appears which will show your tasks errors.