I am also a big CW fan in NYC. I also had a ticket. (I've lurked here for years).  I noticed there was a 50% off sale for that show posted on Instagram from the venue. So I'm sad to say it looks like poor ticket sales and not "technical issues" as a text from the theater suggested.

I checked available seats earlier this week and it look as though there was around 45-50% of the seats unsold.

They have not done shows in NYC for years.  The last one I remember going to was at the Kings Theater (Brooklyn) in 2016.  They play New Jersey venues every tour.  I've been to those shows many times.