Hi David
That means the recurring settings you entered is invalid. Could you please try to follow the instruction at
documentation.joomdonation.com/2-events-...ing-recurring-events
to setup recurring events ? If it still doesn't work, please submit a support ticket sending me the information which you entered so that I can create a sample recurring events for you
Please note that recurring events only work when you create new event. You could not edit an existing event to make it become a recurring events
Regards,
Tuan
