Unable to process template language expressions for action 'Apply_to_each_2' at line '1' and column

Hi All,

Is there a possibility after the owner email is disable, the entire workflow cannot work properly. Previously, the flow do not have any error regards to the subject mentioned. After the flow's connections was changed, this error occurs. Has try recreating the workflow but did not work.

Below is the attachment of the error.

Unable to process template language expressions for action 'Apply_to_each_2' at line '1' and column '31497': 'The template language expression 'outputs('Start_and_wait_for_an_approval')?['body/responses']' cannot be evaluated because property 'body/responses' cannot be selected. Array elements can only be selected using an integer index. Please see https://aka.ms/logicexpressions for usage details.'.