This url cannot be found on this server

I have deployed an odk project in Google cloud platform but I get error 404 each time I try to load it.
When I checked the error trace in app engine, I found something like:. Protopayload.UserAgent:AppEngine-Google;(+
Please I need help urgently as I am having headache presently because of this issue. I am ready to give further details of the project if need be.
Thank you in anticipation.

Welcome to the ODK forum, @Taiwofisayo ! We're glad you're here. When you get a chance, please introduce yourself here. I'd also encourage you to add a real picture as your avatar because it helps build community!

I'm sorry you're having troubles! I'll try to help you. Are we talking about ODK Aggregate? If so, I'd need more information. Could you copy the full error trace here?

Continuing the discussion from This url cannot be found on this server:

Below is part of the error trace:

         "userAgent":"AppEngine-Google; (+",
               "logMessage":"Static file referenced by handler not found: public/gae/watchdog"

Hi, @Taiwofisayo! I can't tell you much from that trace... We need to keep digging.

Do you have anything in the error reporting section of your Google Cloud Project?