Open Chrome on your Chromebook
Click the three-dot menu in the top-right corner
Select Settings
Click Privacy and security
Click Third-party cookies
Choose Allow third-party cookies
To allow cookies for a specific site, click Sites that can always use cookies
Click Add
Enter the website address
Select including third-party cookies on this site if needed
Click Add
Refresh the website
If cookies are still blocked, clear browsing data and try again