There are times you may find that the YouTube app having some issues on the Nexus 7. If you try to play one of thevideos, you will see the app get stucked. An error message appears on screen saying "There was a problem while playing this video. Touch to retry". However, no matter what you try, the error won't go away. So, how do you fix this issue? Just try one of these solutions below to see if it works: 1. First, check to ensure you have installed Adobe Flash or not. You may need to install Firefox instead of using Chrome. After the installation of these two, you can see the mobile version of YouTube site works fine with Firefoxbeta. 2. Try to clear cache or any data of YouTube app in the settings, then soft reset Nexus 7 . 3. If these two options does not work, you will need the help from other apps: - First, tap on the Home key to return to your Nexus 7’s Home screen. - Launch Google Play Store app. - Next, search and install Titanium Backup from Google Play