Score error

Basically after asking many doubts in this forum, i manage to make those objects fly etc etc etc but score is the problem, timer is the problem. my score cant be displayed and i want to set time base on how to set the score…but i dunno how to set the timer for up to 90seconds and i cant make the score to appear.

Currently, i have the codes that should be working, as i tried using trace()
but still seems correct for it…
i have no idea how to correct it.