Obviously you have changed a setting somewhere on the phone or its a specific issue with the mobile version of the website you are trying to view. As you have given no useful information for others to check if they get similar issues and as my crystal ball is broken I can't go any further with this other than to suggest you do a factory reset to see if it clears the problem
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion.
This is not Customer Service so we are unable to help with account specific issues.Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)