Did The Poznan People Spell 'Craic' Wrong In Those Billboards?

There is an 'I' in craic lads. I just can't see it here. Either it got lost in the rotating gap or it was never there in the first place.

Edit - possibly not a typo:

@ballsdotie No. One of the strips is missing. you can kind of tell - look at the guy below where the 'i' would be, and the 'P' in Poznan.

— Andrew Lane (@andy_lane) July 6, 2012