Gammo, we have not had issues with either sound effects or music on any of our test devices, and yours is only the second report we have seen about audio not working in VF2.

Missing audio and/or images can be caused by insufficient free memory to load game assets (a fairly common problem on devices with less than 1 GB of RAM). Have you tried closing all apps from the multi-task bar, then launching the game and adjusting both the sounds and music sliders? Please let us know if that has any effect on the problem.

As for the other issues you're seeing in the game, as Arnie said, they aren't really caused by glitches. Since the Flea Market refreshes its contents several times a day, you might want to check for the certificate at least a couple of times a day to increase your chances of seeing it. The events are random, and they will repeat. Sometimes that can actually be a good thing. Nevertheless, we can take a look at that particular event to see if it should be presented only prior to renovations having been completed.