1. Check your approval steps. If they are blank click the reset button on each step and add your reviewers and conditions again.
2. Once Reviewers are set up correctly please process manually.
Go the Reports tab
2.1 Click Refresh at the bottom of the add-on.
2.2 Press Not Processed. This will generate FW Id numbers and send emails to Reviewers to process outstanding workflow approvals.
WARNING: If you have Arrayformulas on your Sheet be sure to modify your formula beforehand to reflect only those rows with Form submissions. If you don't Form Workflow Plus will create FW request numbers for the whole range and send Request for approval emails to reviewers to act upon. More info ==> How can I get the grand total calculated without having the requestor add this to the Form?