Workflow stuck due to No Agent found

Hi experts,

I am currently facing one issue in the production environment.

A workflow was moved into Production few days back.

But the foreground tasks (2 of them ) were not made 'General task' for few days until now.

Now all the work items created by this workflow till date, in all of them , all the Dialog work items were not forwarded to their respective agents since the tasks were not maintained as General task. That means when they are checked in workflow log, it says 'No selected agents'.

But now I have made them as General task.

But the question arises, the work items which have been created till date, how can they be forwarded to their respective agents?

The workflow is 2 level.

Next question is: If the 1st level is completed manually, will the 2nd level approver now properly get the work item? Since the task have been set as General task now?

Please help.

Regards,

Pranita