Remote fob key stopped working(central lock is working)

[LuDRaX]

Hello to all members of this forum!
Till now I only read posts but now I need to post one :D

So the car Yaris is 2009 model (EU version, made in France) with 100Hp,nsp90l-chfrkw , engine is 1nr-fe.

Here is a video of the problem, and afterwards description of the problem(sorry for my poor accent):
https://www.youtube.com/watch?v=n8XrHVPCKO8

I bought this car second hand, till now (about 3 years) the remote key fob, which is separated from the key, worked fine and suddenly stopped although central lock with key and buttons in drivers side close and open all the doors.
Also when I am trying to follow the guide for adding new Fobs I get a 2 clicks from the locks which is not supposed to be and cant program a new one.

Do anyone encountered a similar issue? do you have a suggestion what might it be?