Premiere Elements has benn rendered useless, to me, I can add media, create, save projects etc but when I want to save the resultant 'movie' "Share & Export" is the only way I see how to but it crashes the premiere elements app every time (it believes it does not have 'username/Library/Application Support/Common' access permissions.)
In the Help Menu is a choice for Online Support. It will start a "chat" with Adobe techs. They can remotely troubleshoot your system. If they are busy, you may have to wait. Have something to do while you wait.