webui not working with "Unacceptable file type, only regular file is allowed."

[bacon-cheeseburger]

Hi. I decided to give your webui a try. Downloaded v0.4.0.tar.gz from the Releases tag. Extracted the public folder and placed it in my ...../webui path. I did rename public to aminpaks to keep track of which webui it is as "public" is too generic. Then set the alternate webui setting to the ...../webui/aminpaks path. Now when I navigate to the url I get "Unacceptable file type, only regular file is allowed."

Using the same process to test other alternate qb webui's works fine. Any ideas?