Error on enter application description

{
“details”: [
{
“name”: “503_upstream_reset_before_response_started{connection_failure}”,
“correlation_id”: “11612bfe-66f6-452c-af18-a4ce0b0cde42”,
“attributes”: {
“cluster”: “eu1.cloud.thethings.network”,
“flags”: “UF”
},
“message_format”: “upstream connect error or disconnect/reset before headers. reset reason: connection failure”,
@type”: “type.googleapis.com/ttn.lorawan.v3.ErrorDetails”,
“namespace”: “proxy”
}
],
“message”: “upstream connect error or disconnect/reset before headers. reset reason: connection failure”
}

Two such, similar, error messages from 2 new users - just 3 & 4 days joined Forum, correction long term joined but little activity (few days visited and <20 mins total read time) - seems too much of a co-incidence wrt Gibbs rules. Common system problem or both doing something similarly wrong…

What does documentation (ErrorDetails) tell you?

A little more information would be nice. Just an error message leaves us guessing what you are doing/attempting. Error in your browser? Error while running cli tools?

Without additional information this ends up on my ‘I stopped guessing long ago so unclear messages get no help’ pile.