If you still want to invest this month you can add some more cash to your account first, then place one-off orders in the app for your monthly investments which didn't go through. You can add cash instantly using Google/Apple Pay, your debit card or an easy bank transfer. πΈ
Remember, the best way to make sure your monthly investments go through in future is to set up a direct debit for the total amount you're investing each month. β And just double check this amount is enough to cover all your monthly investments, plus a little extra for your Dodl account charge.