Http outcall stopped

Why suddenly HttpOutCall not working, what happened?

Here is the error:
Call failed:
Canister: xqsqi-eimaa-aaaxi-q3kxa-cai
Method: getData(update)
“Request ID”: “2a45904a2600a10a888d8f7c74b4685ba45c0e6327a84d5889625865285db949”
“Error code”: “IC0406”
“Reject code”: “4”
“Reject message”: “Connecting to icptest-111.europe-west1.run.app failed: Failed to directly connect: hyper_util::client::legacy::Error(SendRequest, hyper::Error(Http2, Error { kind: Reset(StreamId(1), PROTOCOL_ERROR, Remote) }))”

Can you share the whole request? We suspect it’s because of the headers you send