Resource not found

GET /lifecycle/flows/signup?continue=https://uc.appengine.google.com/_ah/conflogin?state%3D~AJKiYcG4s3EL4-D7v_aLAAD_NVeczgJMNt8DktSKXhybFk4ZDJBNNNSLMrkxdvyP0TMyg8Kvo-50brJsQ29Le6PljGGWZM-QXJcXxedkipuinWq-E3h9n-_nNDLpqqN86dFS83_g7ZA8zSWbY3k09EU3Y5XaobP6ka-BJv8kZZiwTsBMrbKxpSAnnLDwqehdT5PORgq1wK3X1VrWRUv8SqB3cziYrBcKSy_-TZfFhqZ_gXUJYC5hmb0&dsh=S-234386953:1713539015818045&flowEntry=SignUp&flowName=GlifWebSignIn&ifkv=ARZ0qKL6s4HiLhc4801ZLWQm2RCzZik3wo_pSvp72YgCoTJqEjBhx2ne5ekfDc_PmU19GoXejImuyg HTTP/1.1
Accept: */*
Content-Type: ; charset="utf-8"
Host: openradar.appspot.com
Traceparent: 00-f10273bcb3cecf454815a3dd465fe624-348d9cb70cbe7441-00
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
X-Appengine-City: columbus
X-Appengine-Citylatlong: 39.961176,-82.998794
X-Appengine-Country: US
X-Appengine-Region: oh
X-Cloud-Trace-Context: f10273bcb3cecf454815a3dd465fe624/3786855171695211585