Thanks for sharing your concerns here. From the screenshots and description provided, this seems to be an error generated by the application. I can only see that the application returns numerous
500 errors from various URL handlers. There's no evidence to suggest this is caused by the platform itself.
From the URL of the application and the UI, it seems to be a deployment of and
OpenDataKit application. If this is your project and you have access to the ODK code that is deployed, I would suggest consulting your application's logs to know where to look for application error within the code base.
If this is not your project or if you do not have access to the ODK code, I would suggest consulting the
OpenDataKit help page or filing a public issue with them on their
public issue tracker. I hope this information is helpful.