Mostly, it’s a setting for a site to disable or enable certain classes of cookies.
Browsers in their settings have some settings for cookies also. Set those to “accept”.
And don’t use add-ons that disable cookies.
To enable cookies in your browser, follow these steps:
Google Chrome: Go to Settings > Privacy and security > Cookies and other site data, and select Allow all cookies.
Mozilla Firefox: Open Settings > Privacy & Security > Cookies and Site Data, and choose Standard.
Microsoft Edge: Navigate to Settings > Cookies and site permissions > Manage and delete cookies and site data, and ensure Allow sites to save and read cookie data is turned on.
Safari (macOS): Open Preferences > Privacy, and uncheck Block all cookies.
These steps will enable cookies and improve your browsing experience.