Bug: Website crashes from donation

I recently got the message asking to donate because of COVID-19. Specfiically, "We’ll get right to the point. With the coronavirus (COVID-19) creating mass school closings, demand for Khan Academy has spiked. Please help us meet this demand. A gift of $10 monthly would make a big difference. We’re a nonprofit that relies on support from people like you. Thank you!" I clicked the other button and decided to hold the 9 key. It continued to increase until e+305.84. Adding one more 9 to this number will give the "Oops. Something went wrong. Please try again." and close you out of the website.