Evolving Ring - What hapens if I miss a day?

So as a small back story, I had to get my laptop fixed today, so I decided to play MapleStory on another computer w/ Windows 8 (which seemed to be really slow because of that). Because of this, I kept on D/C'ing with enough time to only claim and open the Day 2 Hot Weekend box. However, I was not able at all to conplete the Evolving Ring Potion, as I was only able to on for as long as 40 minutes.

Anyways, my question is, if I missed a day to evolve the Ring, does this mean that I can't fully evolve that Ring? (Can I not evolve it twice in one day?)

Thanks in advance. Have a nice day!
P.S.: I totally misspelled "happens" in the title, I know.