We're about to switch on paid ads. Assume a slow connection and a cheap device. Repro steps and a screenshot for anything you hit, please. Known: the avatar upload is already broken, skip it.
It shows what a real brief looks like. When a founder funds a job like this, you pitch here: a couple of lines on what you'd test, your price and your hours. The pay on a $125 job would be $112.50.