Innova is based on DASH, like most masternode coins. DASH recently updated their system to require new software called "Sentinel" to be run alongside a masternode. It seems that this update was included via soft-fork, which was automatically grabbed from DASH, and as a result a large number of masternode coins suddenly required this additional software. However, this software wasn't built with these coins in mind, and the developers had to scramble to get things sorted out.
Innova devs reacted quickly, and we had a compatible version of Sentinel (and installation guide) shortly. But unfortunately with the mass-installation of Sentinel plus the majority of masternode coins refreshing the chain validation at the same time (as a part of the installation process), an accidental chain split happened. The miners ended up on one chain, moving it forward, but Cryptopia ended up on a chain with no miners. Effectively, Cryptopia couldn't send or receive INN for a couple of days.
Cryptopia has since moved to the valid chain, and things are fine now. As expected, INNOVA dipped as a result, but it's not going to last. INNOVA is one of the few coins that actually delivers a steady (and absurdly high) ROI. This is the perfect time to get a cheap masternode.