Drivers side door lock has been superglued shut

For this type of problem I recommend YouTube. Always a wealth of information on rear gates door locks etc.
Google > YouTube 2000 Ford Explorer door locks

Shut the hood, make sure the back hatch is shut tight. Lock all the doors. Walk around and make sure they locked. Open the drivers door with the key. This should clear the security. If not lock it again and try the passenger side door. Reach in and unlock the drivers door. If it cleared then. Replace the drivers door latch on the back side. Inside the door.

Could be a problem with the latch.

some how lever to the lock unit came off , need to open the interior panel of the driver door and put back lever to the lock unit. It should work.

will your key work in the passengers side?
If so I asume you have electric door locks. open drivers door from inside shut the passengers door. go around to the drivers side shut the door lock the doors from inside then unlock the doors open door shut door and try to start it...as far as disableing it you will have to take it to nissan electrical tec.

U have a defective door ajar switch.

My sister had the same problem, take it to the dealer it is still under factory warrenty..trust me they will fix it for free. Hope this helps

Take it to the Honda dealer, they will fix it for free, known problem and under factory warrenty.

You will need to use a Pair of Vice Grips on the Lever While Opening the Door with the Handle at the Same time. It should Pop Right Back into Place.

sounds like the rods are disconnected the clips hold the rods in place the latching mechanism holds the handle in place as well did you replace the speakers or did a shop? if a shop did then they caused this if you did then you may have caused this either way untill you reattach the rods none of it will work. you will have to manually open the door at the latch from inside teh door behind the panel.