Menu options missing left side of home page on Connect website.

Since a few days, the left "black" column in Garmin connect is empty on Safari on my Mac, with no menu showing, but visible on Chrome. Any way to fix that ?

Same here. I have tried with Chrome and Firefox, but the menu is blank with booth.

Firefox shows the error message in the developer console:

I would try clearing the browser cache or reloading the page, ignoring any cached content:

Windows OS: Chrome, Firefox, or Edge - Ctrl + Shift + R

MacOS: Chrome, Firefox, or Safari - Shift + Command + R

Joined your thread to the main thread.

Quando apro garmin connect la banda nera laterale compare ma rimane completamente nera senza riportare le indicazioni (Home, sfide,calendario ,etc..). Cosa posso fare per ripristinarla ?

See if it works in incognito/private mode so nothing is cached and no extensions are active.

I think it's the same issue as in this thread:

forums.garmin.com/.../menu-options-missing-left-side-of-home-page-on-connect-website

I've found out that the reason for this lies in the browser's security settings. If they are set too strictly, the menu is missing. It seems that something has changed on the GC website that no longer works with strict security settings.