I just uploaded a new version 1.3.5.0 of LDFind.
Hopefully this will fix your issues.
I did not yet delete all related files on my system, so it might be still some issues - but i do not expect that
Edit:
I just also did that (deleted files in the folder "C:\Users\yourname\AppData\Local\Michael Heidemann\LDFind\1.0.0.0").
I took the just upload file and expanded it on the desktop. Doubleclick on the LDFind.exe and it starts perfectly.
Hopefully also on your end.
Hopefully this will fix your issues.
I did not yet delete all related files on my system, so it might be still some issues - but i do not expect that
Edit:
I just also did that (deleted files in the folder "C:\Users\yourname\AppData\Local\Michael Heidemann\LDFind\1.0.0.0").
I took the just upload file and expanded it on the desktop. Doubleclick on the LDFind.exe and it starts perfectly.
Hopefully also on your end.