DaemonUmbra

Try removing Optifine

1.7 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Try adding -Dfml.earlyprogresswindow=false to your JVM args

Why do you have Optifine installed on a server anyway?

Can you explain more about the reason you don't have internet on the PC you want to install Forge on?

It doesn't look like you're running Forge, why are you asking us for support for what looks to be Vanilla Minecraft?

Ok, go into the world folder and delete the serverconfig folder, they will be regenerated when you start the server

Have you made any config changes on the server end?

That's not it, that's an old log. If you're on Windows, go to View and check "Show file name extensions"

Is this when you tried to start a server?

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

I seem to recall this being a vanilla bug, I'm sorry to say that you might need to manually fix your level.dat to fix this. I can't exactly remember how, I think the procedure was listed somewhere else on the forum.

Spammy posts merged. Please don't do that again, I'm not here 24/7 Also, use one of the sites linked in my signature below, I don't trust the site you picked.

1.10 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

It looks like you'd need to extend BlockItem and override getBurnTime to do this, as getBurnTime is an Item method, not a Block method

Are you by any chance using airplay?

1.8 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

1.12 is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

No, latest is a different log. Are you using Twitch?

Provide the log I asked for please...

DO NOT USE WILDCARD ATS

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

Debug.log is a file in the logs folder that contains a lot more info than a crash report or latest.log. Further details on where it is can be found in the Logs section of my signature below (just expand the spoiler).

What? If you're getting "random numbers and letters" I'm guessing you're looking at the compressed older logs. What I'm asking for is a file called debug.log. Do note that Windows Explorer hides file extensions by default, you can show them by going to View and checking the "Show file name extensions" box.

Honestly at this point delete everything from serverconfig and copy every file in defaultconfigs that ends in -server.toml into it.