Media Encoder error and problems launching

Hello,

I am trying to export an hour long video from 4k/HD to the 720 Vimeo preset and I have been encountering error messages since Thursday 31st evening. Here is an example of the error message. I have an Asus notebook PC and have my files stored on a Samsung Portable T7.

I have been trying to test a one minute export this morning, and after clicking "Queue" in the export media window, AME has taken almost 5 minutes to open. I still haven't been able to export.

For info, last week I did this same export (the long 4k to 720) and had no issue.