Hi @imedkhiari,
Thanks for reaching out!
You should have a JavaScript code in your Google Analytics account. Please copy it and add it in the field in Appearance > Customize > Colorlib Coming soon > General > Google Analytics.
This should help: https://support.google.com/analytics/answer/7476135?hl=en#zippy=%2Cin-this-article
To find the tracking ID and code snippet:
Sign in to your Analytics account.
Click Admin.
Select an account from the menu in the ACCOUNT column.
Select a property from the menu in the PROPERTY column.
Under PROPERTY, click Tracking Info > Tracking Code.
Your tracking ID and property number are displayed at the top of the page.
Instructions for adding the analytics.js version of the tag are available on our developer site.
Warmly,
Mihaela