in https://scratch.mit.edu/projects/1255797629/editor/ the timer script in apple sprite is hidden either because of blocks after stop all that was possible back in day or because of a red glide block that was replaced by the modern glide block
my block tests on my acc show that with different combos either one script can be hidden or all scripts in sprite.

Could someone find out a way to unhide this or/and to find out the cause of how it hidses one script and how sometimes it hides all

final part of script looked something like this
escept stop doesesnt end script

stop [all v]
repeat (10)
move (10) steps
end
glide () secs to x: (0) y: (0)

check the project.json. it could be hidden with the invisible tag

Try uploading the project to 1.4 instead, replace blocks with workarounds, and then use the share feature (Scratch allowed you to share projects from offline editor to online editor in 1.x and 2.0).