[Tkinter] Coding issue

[EsahiG]

Hello! I am fairly new to python and i am taking over a project from a previous student. In this portion of the code that I was given, I keep getting an IndexError. If anybody has anything that can help, please feel free. Thank you!

  #Name Labels and Angular Displacement Sliders
        names = ["Servo {}:".format(8-x) for x in range(8)]
        jointLabels = []
        jointScales = []
        for x in range(8):
            jointLabels.append(Tkinter.Label(individualServoControlFrame, text = names[x]))
            jointLabels[x].grid(row = x+1, column = 0, sticky="SE")
            if window.dropBoxServoModelVariable.get() == 'AX-12' or window.dropBoxServoModelVariable.get() == 'AX-18':
                jointScales.append(Tkinter.Scale(individualServoControlFrame, from_ = 0, to = 296.67, resolution = 0.01, width = 15, length = 150, orient = "horizontal")) #Creating sliders
            elif window.dropBoxServoModelVariable.get() == 'MX-28':
                jointScales.append(Tkinter.Scale(individualServoControlFrame, from_ = 0, to = 360.36, resolution = 0.01, width = 15, length = 150, orient = "horizontal")) #Creating sliders
                
            jointScales[x].grid(row = 8-x, column = 1)  <----------(THIS IS THE LINE THAT KEEPS GETTING THE ERROR)
            
        setattr(window, "jointScales", jointScales)
        setattr(window, "jointLabels", jointLabels)