What's going on with the lift??

From monday till today, i've been using the stairs to get down to the car park. No lift? Lift spoilt? well, NO and NO!! ok, here's what happened..

Monday
I pressed on the button going down, and looked and the number appearing at the top of the lift. It's at P1, after 5 minutes it's still at P1. No sign that it's coming up, and the other lift, it just stay at where it is...

Tuesday
Not able to press on the going up or going down button. press, no lights indicate that it's been pressed. press up press down, it's still the same.. looked at the number above, no sign coming up...

Wednesday
Press button, ah-ha, lift coming up, but it did not stop on my floor, straight away go up to the top floor, so i thought, wait lar, when it comes down it will stop mar.. and NO i was wrong!! it did not stop, it just went down without stopping at my floor.. and it doesn't come up after reaching ground floor!!

Thursday
aiyar..forget it, just take the stairs lar...

My unit is at the 6th floor, taking stairs down is ok for me, but when you are in a hurry, or you have a lot of things to carry, taking stairs is not OK anymore.. what's wrong with the lift? someone did something to it izzit? until it can go straight up to their floor and go straight down without stopping??!!!