Here's the first part of the band's statement:
The permits for the new venue for Bisco on the Green were not approved. We took a gamble on this one (working with someone who isn't our normal Colorado promoter, because we thought the idea of 3 nights outdoors IN Denver sounded amazing) and it didn't work out. Sometimes, when things seem too good to be true, they end up being just that.
It concludes with the following:
We do apologize for any inconvenience. We are extremely excited that we were able to turn this tough situation into something positive and we look forward to getting out to Colorado to play another epic 3-night stand at the Ogden! With no early curfew.
You can read the whole thing on the Disco Biscuits Facebook page, where there is also detailed information on refunding your tickets.