For the last couple days now, my Minecraft Realms server has been giving unusual errors when attempting to connect to the server, and it has been happening to all my players - blocking us from connecting. In addition to this, I am unable to change/download worlds or close the server and have not been able to since this error first occurred.

Examples of these errors are below.

io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection timed out: no further information:
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information:

Attached is an image of the error screen.