will not export PNG

infuriating issue where the "opperation cannot complete because of unknown error. [!now]
literally just trying to export as a png.... an operation ihave done countless times.
drivers are updated. i attempted this soloution... https://www.youtube.com/watch?v=Xz5jJIYwiT8 which did not help. euphoria.art.studios@gmail.com please advise.....
I have been using adobe products for years and this summer... i have run into several obnoxious issues resulting in hours on the phone with tech support. These services are expensive and the recient updates... glitchy.
