DaemonUmbra

The first step to this is to see if you can track down the original author and ask if they still have the source and if so, can you look at it

You can download builds of OpenJDK for free from Eclipse Adoptium or AdoptOpenJDK NOTE: The AdoptOpenJDK site is not liable to be around much longer as they became Eclipse Adoptium, however there are still some older builds that were not carried over to the new site

Please provide debug.log (more info on where it is and how to provide it can be found in my signature below, just expand the spoiler)

Please provide a screenshot of your launcher

You "deleted the phrase"? I'm not sure what that is supposed to mean.

Would you care to use the report button for such a case? Many folks have made posts like this and it turned out to be policy disagreements.

Delete forge-common.toml from your config folder and try again

Please provide debug.log More info about where it is and how to provide it can be found in my signature below (just expand the spoiler)

You were asked to delete a config, not a mod

I don't think Optifine has any Forge-compatible 1.18 versions yet, try removing it

Please provide a screenshot of your Launcher

1.18 needs Java 17

User was banned for piracy. Buy the game.

This suggests one of you has a poor internet connection or a slow machine

Was the launcher running when you ran the installer?