To fix this, go to settings, switch off one click payments and then turn them back on. This will reauthorise IMB, and you can set the auth price to something high so you don't run out. Seems to have fixed the problem for me at least.
twetch#8700 6.5y
I had to make several attempts to post stuff today. It kept coming up with 'something went wrong' so I had to start again 😕 Got there eventually