Just recently when I try to upload from Premier Elements 11 to YouTube I get the error: "Share to YouTube is temporarily unavailable through Adobe Premier Elements". I can upload to Facebook and save to computer. I normally use YouTube so this is a nuisance. How can this be fixed?
Known issue, wont be fixed any time soon.
Export to mp4 and upload manually.
Something (secret!) changed at YouTube and they may, or may not, do anything. Adobe is not like likely to change to your "older" software version.
Instead, output to a file type you like to somewhere on your computer. Log on to YouTube and use the YouTube uploading routine.
When you output render a file for YouTube, you can try to match YouTube's suggestions. However, as YouTube has changed to accommodate so many cameras and formats, it matters less. I have a format I like for viewing on my own computers and TVs. YouTube seems fine with it.