Still not entirely clear what "the problem" was yesterday, but there were literally thousands of people who bought one day and weekend passes to Fun Fun Fun Festival who never got in yesterday due to the four hour+ wait to get in. Here's what orgainzers wrote this morning:

"For those that experienced delays today WE ARE SORRY, TRULY SORRY. Here is how we are fixing the problem moving forward. Queue (The FFF ticketing partner) will keep the box office open after the festival tonight to assist any customers still needing credentials for the weekend.

The box office will open tomorrow at 8am for early check in, customer service, and questions and answers. Now that we have identified the problem and allocated resources to fix it, we are confident that tomorrow’s lines will be back to normal."

More info available on the FFF website.