The push fails because a layer already exists and there is a connection issue, but it works when executed the second time because the existing layer is detected and no new layer is pushed.
Layer Already Exists
Layer Already Exists is an error message that occurs when a user attempts to create a new layer in a digital image editing program, but the software recognizes an existing layer with the same name or identifier.
Connection refused is a common error message displayed by computer systems when a connection to another computer or server is not possible. This error message usually appears when a user attempts to connect to a remote computer via a network or the internet, but is unable to establish the connection due to various factors.