What should I do after taking a third-row Slinda tablet with a 9-hour delay?

Good morning. Today I forgot to take the eighteenth pill (third row) of contraceptive Slinda, but I took it immediately when I remembered it, i.e. with a 9-hour delay. In this case, should I continue to take the pills at a fixed previous time? Can he skip the green placebo pills at a later time? The information that is contained in the leaflet is not fully understood by me, so I prefer to ask.