My comment isn't an insta-DQ, but the opposite ... like this situation with a high paying grocery survey ... you qualify and are answering all questions related to your recent shopping trips ... survey continues ... it's very long and thorough because it goes through each of the trips you identified in previous question ... then when you expect it to wrap up ...
Message: 502 Proxy Error - Google Chrome
Received invalid response from upstream server ___ Proxy server could not handle request
Reason: Error received from remote server
It's like hitting a wall head-on; no credit as no answers recorded, nor a DQ penny and losing a lot of time on survey. I don't understand error message when I use my desktop PC exclusively and Google Chrome. If anyone has a clue, I'd appreciate it.