Door Arm Rest Week 8 Challenge

I CAN NOT ABLE TO MAKE THIS PART. WHEN I USED BOUNDARY COMMAND IT IS SHOWING ERROR IN UPDATING. NOW I WANT TO MOVE FURTHER IN THIS COURSE. BESUASE ERROR IS SAYING THAT YOU HAVE TO DRAW FORM START. AND I DONT WANT GTO WASTE MY TIME SIR AS I HAD APPLIED IN GERMANY AND WILL GET ADMISSION BY THIS WEEK.