Also if you can, please try to recreate this problem you are having with Lightroom and Topaz Photo AI, then open Topaz Photo AI and go to Help > Open Log Folder.
Please send me all of the files within that folder. You should be able to attach them directly as a response to this email.
You can securely submit your files(s) to my Dropbox using the link below. Please be sure to send me a note to let me know you sent something.