At the moment, that url you send just gives 502 bad gateway so I don't know I can gather more information on the problem using it.
Edited the first link :
https://gitlab.com/minifaucet/public/tree/masterIt is the minifaucet (made by elbandi)
You can reach me on skype (ID : voucherstore.net) and I can give you more detailes.
I have to admit that although I've installed a minifaucet for someone before it was more than a year ago (and maybe it was microfaucet, i dunno). In either case, I don't really have time to try to install this software and reproduce your error at the moment. However, maybe I can help you find the issue through the forum a bit?
For one, are you getting a php error? Or does everything seem to run smoothly but there's just no balance where there's supposed to be one? If the former then certainly you need to debug the php; if the latter then you need to focus on why your balance isn't accessible (can you reimport the keys from your wallet?).
Another idea, if it's a php isue reinstall your faucet on a non-public server and then turn on php's printing errors to the browser.
Another idea, send a small amount of your funds to another address and try to restart from scratch using that address. I think your first main goal in debugging this is going to be trying to reproduce the issue.
EDIT: I looked again at your OP and it seems like you're not having PHP issues, just some issue has arisen with your blockchain wallet. One thing that may be the case is that perhaps they have a bandwidth or transaction limit on their api. Can you install bitcoind and send a little of your money to that address and then try to point your microfaucet to your own node rather than the web-wallet. It sounds like that would be a really good place to start.
