I cannot play a saved video on Adobe premiere

[#1]

I cannot play a very short video I made and saved last week on Adobe Premiere.

What is the reason and how can I solve this issue?

I use a Macbook pro 10.14.6

[#2]

Saved as what?

Exactly what is INSIDE the video you are editing?
Report back with the codec details of your file, use the program below
Free program to get file information for PC/Mac http://mediaarea.net/en/MediaInfo/Download
- when you analyze your file in MediaInfo and post a screen shot in the forum, do so in TREE view

Post IN your message, not as an attachment