To fix Internal Exception: java.io.IOException, An existing connection was forcibly closed by the remote host Minecraft error, you need to follow the given solutions.

Minecraft players who are using an outdated version of Java will be greeted with this message How can players fix the JNI Error?

If you have come across the Exit Code 1 error on Minecraft that causes the game to crash when loading it, here's what you can do to fix it.