Thank you for letting me know! You turn away for a little while and all hell breaks loose.

The captcha provider seems to down for me as well. I have placed support ticket with them.
The thing is, I already have a new captcha provider for the next update. Not sure if I should go ahead and implement that right now, or wait until the rest of the things are done? I will let that be a decision for the two of you. (Please note that the new captcha will be very different from the current one)

UPDATE: They are already aware of this problem and it should be fixed rather soon. So I will keep the current captcha for now.