HP Desktop Adobe Premiere Elements Pro 2021 timeline playback not working, freezing, not uploading

Hi! I have had this program for close to a year with no major issues. Prior to installing the update, the app would start to freeze and not import my videos. After installing the update, I now have issues with the timeline not playing anything back, not uploading imports to edit the clips, freezing, and crashing. I have restarted the app, restarted the computer, several times over the last week and nothing is helping. Any advice will be appreciated as I can not edit any of my videos to post on my vlog. Thank you!