What is the reason behind "upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111"

like its provider’s error or wrongly implemented code in the project ?,

my project only has one user still it gets a reset/disconnect error. I’m running it on
eMicro - Singapore.

fun fact i never received this error on a free instance - Washington, D.C running over a month