Invoice status back to paid

So I have, by mistake, marked previously paid (recurring) invoices to "Sent" manually. Now i'd revert it back to paid again so the dashboard shows it correctly. I cannot find a way to achieve this other than removing the actual payment and adding it once again. Is there a better way to achieve this?

How did you do that? Mark Sent button is not clickable for Paid invoices.

If I go to the Invoices screen and select multiple paid invoices I still get the option "Mark as sent" and all other options in the online version of Akaunting. Might be because I manually add the payments?