Our deep apologies for all those affected by the issue over the last few days, where requests would be added to the queue, but never processed. And our deep thanks to the kind user that reported it! This has been fixed, and I hope to implement some steps to detect this particular case automatically in the future. We apologise once again and thank you for your patience and forgiveness.
I seem to be having the same issue again. Worked yesterday
Yes, you’re right 
I’ve fixed this again now. Thanks so much for reporting.
I’ve topped you up with some free credits for your troubles.
I’m still working on the auto-detect solution, so, really appreciate you letting me know in the meantime 