I and other people are suffering some erratic failures with the AW api, with the extension of AW coin update. I know it's a separate development, but it seems that AW sometimes fails, and when it happens it's a failure that stays for days.
I have reinstalled the AWCU extension, I have reinstalled the latest version of AW beta. And it does not work.
This afternoon the system worked, but when I was mining with the same machine that has AW installed, I launched the AWCU currency updater, and gave that error, and I can not eliminate it.
The other time was an error that also disappeared only after the last update. I do not know if there will be a relationship with your API.