Magic bullet nutribullet is on base and does not want to start when I twist

Question edited for clarity (what it is) and for typo.
Question moved from Cars and Truck to correct category.

Replace or service the Activator Switch. Full method in the link.
https://www.ifixit.com/Guide/Magic+Bullet+NutriBullet+Activator+Replacement/36403

https://www.google.com/search?q=nutribullet+parts+diagram

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Have you got something caught in it? Is it still under warranty? I am guessing but the mechanism inside the base should drop when you push to twist. Check is this is happening. If not then that may be the problem

There's 3 tabs on the inside of the base that get pushed down when you push the cup in. Two of them have switches on them, sometimes they can break. Make sure they are being pushed down. If not, it could be one of the switches inside.

Do not try repair it manually,as its a concern of electronic gadget,& its hazardous.Get it done from a service agent or instead prefer ton buy a new one.I would suggest Magic bullet blender nbr1201.The Magic Bullet consumes less power than Magic Nutri Bullet when you compare Nutribullet Vs Magic Bullet, but it is more when it comes to the price factor. Though it is not that powerful, you can get Magic Bullet at much cheaper price than Magic Nutri Bullet.Go to the link to know.
Nutribullet And Magic Bullet Difference

The cup rim had gotten into it while stored. It looked like part of the base. As another user noted, the inside of the base is flat, with no ridges.

put the cup area under some hot water near boiling and then undo the top with a cloth should come undone then, make sure its hot water.

try heating the jar with hot water before removing it

Sounds like the extractor bearings may be seizing due to rust.
This YouTube vide should help see if it’s the same thing and how to fix it!
Good luck
https://youtu.be/Iw6VXRSHyNM

If the blades do not turn and you notice hot base hot or a burning smell, unplug the power base and let it cool for an hour. The powerbase will reset once the unit is unplugged.
They recommend not running for more that 1 minute bursts.
strawberry/banana num num !!!