Since this incarnation is 100% Internet, we really need an official and solidly dependable "schedule" web page for all of these adjustments in voting events and, really, all events. The only option now is to head to Twitter.
@sayre11: Were you trying to vote between 7 and 8 pm BBT? (my source for the voting window : http://mortystv.com/bbott/ ; see this passage "...During this week's double eviction, the Houseguests will not compete in a veto competition. Instead, the winner of this care package will be awarded with the power of veto. There will be just one hour of voting (HERE) 7-8PM BBT.").