Current status
Your Rolodex is loading, but your Google Sheet currently returns empty arrays for Creators/Videos. Once you add rows (or run sync), cards appear instantly.
Next step
Upload the provided spreadsheet template to Google Sheets (or copy the headers), then run the Apps Script sync to populate data from your playlist.
Webador button
In Webador: Add element → Button → link to https://inventvmags.com/rolodex/