adobe premiere element

"trying to set the aspect ratio settings"  The are fixed to standard video sizes.  What is your footage, where does it come from and how are you starting your project?   Normally the settings are established when you put your first clip on the timeline.  It should be a "typical" clip.  There is a way to force it to one of the standards if that doesn't work.

I've moved this from the poorly named Community Help forum (which is the forum for issues using the forums) to the Premiere Elements forum so that proper help can be offered.