Resource not found

GET /lifecycle/flows/signup?continue=https://uc.appengine.google.com/_ah/conflogin?state%3D~AJKiYcEsh3M_uu7mFL90ejHCS29ubmT3jIq6cUdyIPFeUBn5JYKn45mrF1XwCe0obqV8MWRdrYsOFEC2_6AFl2kGcKZYuV35u5KhcPG0iQUQWm-pC1FJpGncGE5qn2ihP2FCcws67be2RlnaQ_bfpFFktqKS0LKk7uElKSS-KUpIzEJhE2V87IEOaazt4sh0LyIrMfYDpHcyMFGrGJtLl5HxjAmfZxF-RSdgJNeD1tEvvgsVgHwIBno&dsh=S1661634254:1713301479477514&flowEntry=SignUp&flowName=GlifWebSignIn&ifkv=ARZ0qKJclMWpmg-mi2ujuyBzcem7RR5-tBci6wRwUdy23Lv5Jf0AbaWINzuIbqUQH6IIXstSqeMB-Q HTTP/1.1
Accept: */*
Content-Type: ; charset="utf-8"
Host: openradar.appspot.com
Traceparent: 00-b11308c8d963a9ff18936a1073f07cd4-243fc193b2e25b28-00
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: b11308c8d963a9ff18936a1073f07cd4/2612019149003709224