I worked with IJM chips for 11 years at my company Black Point Editions, then in Vermont at UVM, then at Latitude in Chicago, then at LightWork in Syracuse. I ALWAYS have backup chips. These chips are not as durable as you might think. (Frankly not even Epson chips are, but they only get used once.)
We'll send a replacement out shortly, but seriously you should buy a set of backups: from one print-maker to another.
PM me your info and we'll get you squared.