Error in file opening Vizard

[Vishav]

If i open file every time i need to write data then this error not comes but then new problem came that is infobox.remove() is not working. Adding snapshot for reference.
Source Code:
if radio1.get() == viz.DOWN:
infoBox.remove()
score=0

os.chdir(r'D:\PhD\Study-I_Part_I\My_Programs\DFI\Participant_Data')

experiment_data = open(str(id) + '_experiment_data.txt','a')

feedback = viz.addText('You are doing Great!',viz.SCREEN)