OK, though you actually attached a PNG image with a LOG extension, which makes computers think it’s a text file.
I don’t need a new log file, but for reference, after opening Help > Show Log… click “Log” at the top (you can press ALT on your keyboard to make it stand out) then choose “Save…” from the log menu. This saves a text file containing the log entries.
The AUP file shows that Audacity is looking for 218 AU files, and you are missing 218, so it cannot find any of them.
So you need to find those AU files. They should have been in a “d00” folder, which itself should have been in an “e00” folder inside the “focus1_data” folder. The first 256 AU files (so in your case, all the AU files) must be in the “d00” folder. If the AU files are in “e00”, or in a “d01” folder in “e00”, the files won’t be found and Audacity will say they are missing.
Yes, if you dragged in first all the AU files from the left channel in the same order as the AUP file, so “e0000b5e.au” then “e00002fe.au” followed by “e0000746.au”…, strung them end-to-end, and then repeated the process for the right channel.
But it’s less work to put the AU files where Audacity is expecting them, as per above. If they actually are where Audacity is expecting them, then something (perhaps a permission problem) is stopping Audacity opening those files. If this could be the answer, try logging in to the computer as an administrator, or put both the focus1.aup and focus1_data folder somewhere you have full permission, such as your Desktop.
Click the Windows globe bottom left. If you wanted to find all AU files, type in the Search box
then click “See more results” which opens Explorer. If you want to search a specific location, click that location in the sidebar on the left then type *.au again in the Search box top right.
If you wanted to search for a specific AU file such as e0000746.au, just type e0000746.au in either search box (and click “See more results” if necessary).