In a recent CS:GO update, Valve decided to force users to move to their new csgo UI and enabled Panorama by default for all users.
Now, even though our csgo hack supports panorama, if you still want to use the old UI, you can easily do so with just a few clicks. Go to you steam game library; Right click on Counter-Strike: Global Offensive and go to properties; Click on "SET LAUNCH OPTIONS" button; Type in the launch options field "-scaleform" and click OK. If you then decide to go back to panorama, just delete the "-scaleform" text and it should go back to normal.
This guide doesn't not work anymore because Valve removed the Scaleform UI altogether in the 8/29/2018 update.
Don't hesitate to leave a comment below if you have other questions.