Hi on my application host i sometimes got 502 error, i tried change the port to 8080, added health check endpoint but still faced the same issues, on my application logs it show successful response, but railway http logs show 502 errors.

requestId:

"FhNvgG4jTIypRWnjxtoGcA"

timestamp:

"2025-10-23T21:16:36.561088908Z"

method:

"POST"

path:

"/api/pgslot2/applycreatebet"

host:

"api.jinlihui.net"

httpStatus:

502

upstreamProto:

""

downstreamProto:

"HTTP/2.0"

responseDetails:

""

totalDuration:

122

upstreamAddress:

""

clientUa:

"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36"

upstreamRqDuration:

122

txBytes:

109

rxBytes:

1033

srcIp:

"172.68.211.108"

edgeRegion:

"us-west2"

upstreamErrors:

"[{"deploymentInstanceID":"fceba594-3684-41d9-88b0-b986106d1afc","duration":122,"error":"connection closed unexpectedly"}]"