206+ Back door does not open inside

Guys, today I closed the back door, but it was not closed, I tried a few times. Then I pressed the lock button, the inside of the door was closed, but the door is no longer opened. There is no problem from the outside. What happened, guys? How much do you think the cost is?

It is not a big problem if you clicked on the tongue slot, you couldn't close the door, it was like me on the right front door.