Hey Jim, are you still having this issue? It looks like your computer does not have the HEVC codec installed, and you are editing HEVC footage. Did you try transcoding your clip before importing?
You can transcode using a free service like Handbrake.fr
Try importing it after you transcode and let us know.
Thanks for sharing the screenshots. The logs suggest Premiere is having trouble reading the clip named IMG_1060.MOV, with repeated frame retrieval errors and low-level exceptions. That clip would be my first suspect.
I'd recommend launching Premiere's Reset Options dialog and clearing the media cache:
Quit Premiere Pro.
Hold Alt (Windows) or Option (Mac) while launching Premiere Pro.
Continue holding the key until the Reset Options dialog appears.
Enable Clear Media Cache Files (and optionally reset preferences), then continue launching.
After that, try:
Exporting without the IMG_1060.MOV clip in the sequence, or
Transcoding that clip to ProRes or DNxHR and relinking it.
Can you also let us know:
Your Premiere Pro version
Your Windows version
Whether the clip came from a phone, camera, or screen recording
That should help narrow down whether this is a media issue, codec issue, or something system-specific.
Neither clearing media cache or transcoding worked. Still getting the error message on the right above. (I also always get an error message upon opening a project “Low level exception error Windows\SysWOW64 codec64.dll (Get AVICodecs)” This has not hampered me)