It won’t shift because the shift interlock is damaged, the shifter release is broken, or the shift cable is faulty. Alternatively, if it changes out of place but is not working, it could be a faulty brake switch or shift wiring issue.
Failure to shift gears from "Park" can worsen while driving, potentially causing further damage to the transmission system. Therefore, prompt action is essential to avoid further damage to the transmission system and prevent strain on the engine.
Consider sharing the problem with a car service specialist so they can provide expert analyses and recommendations; restore your safety and comfort on the road.