Short: unzip or install via package manager (if available). Ensure dependencies are loaded and include the main file before your script. Detailed steps are on the Installation page.
Check the console for errors, verify CSS/JS files are included, and ensure the notification function is called with valid parameters.
Check the console for errors, ensure that all files are included, and ensure that the progress functions are called with valid parameters.
Open a ticket in the GitHub repository with a clear description, reproduction steps, and, if possible, a minimal code example. For feature requests, please describe the use case and benefits. Issues can also be reported via Discord.
Check the change log or GitHub repository regularly. Some of our scripts will notify you when new versions are available, so keep an eye on your server console as well.