Error Message "This array is fixed or temproarily locked" (case 19682)

[soohyun1110]

Hello.
I made a vigilance task with lots of "fill in the blank" form (when the background picutres appear, participants write the location). But the problem is that after doing 1 minutes (d60), the error popped up.

It says "10 Tihs array is fixed or temporarily locked". And when I clicked ok, it also says
"this background file " was requested but not foudn. this item will be ignored."

I will send email that attaches the error message my experiment file.
I'd really appreciate if you reply as soon as possible,

Thank you.
Ashley