Yawn
Member
Well, that would do it.. There is no /js/ folder packaged with your add-on when downloading the latest version (ThreadThumbnail-1.2.0 - Full ZIP) from your website.Regarding the error, I see the path to the script seems to be wrong in your case, it should be "js/AL/ThreadThumbnail/" and it seems to miss the "js" part. Please make sure you have uploaded the "js" folder you can find in the package to your board. If you keep seeing the error, please post the URL to your forums and we will have a look.
Thank you!