Getting Index Error - list index out of range

[michael1789]

Is it possible that

def rest_types_buttons():
    buttons = wd.find_elements_by_xpath('//span[@class="zred"]')
    return buttons

indexes from 1 and not 0? If that is the case then in button[0].click() the 0 would be out of range. Try changing it to a 1 and see what happens. That's my best guess.