MDW01

No upload the .minecraft/logs/debug.log

Try deleting Forge's config files in .minecraft/config

Most of what you said doesn't make sense but: Make sure you have Java 8 installed. Make sure the mods and forge are the same version. Make a start script to run the universal jar.

elementalitems crashed try removing it.

Change your JVM options in the launcher to add more RAM.

We can't help you unless you provide us with actual information to help us resolve the issue. Provide a crash report or let us know if there is a hs_err_pidXXXXX file in the .minecraft folder.

Theres still no crash. If you can provide us with a log that shows the crash please upload that. Otherwise since forge on it own seems to work you can try adding in individual mods to see if there's one or more specific mods causing the game to freeze.

Update to Build: 1.16.2-33.0.32 or newer.

1.8 is no longer supported on this forum. Please update to 1.15 or 1.16 to receive support.

This has been fixed in 1.16.x Build: #132

This has been fixed in 1.16.x Build: #132

This has been fixed in 1.16.x Build: #132

This has been fixed in 1.16.x Build: #132

If possible update to 1.15 or 1.16 otherwise we won't be able to help you.

Use Pastebin or Github Gists. Uploading your logs like this makes them very difficult to read and thus difficult for us to help you.

1.12 is no longer supported on this forum. Please update to 1.15 or 1.16 to receive support.

1.12 is no longer supported on this forum. Please update to 1.15 or 1.16 to receive support.

1.7 is no longer supported on this forum. Please update to 1.15 or 1.16 to receive support.

As the error says consult your system administrator for details.

1.8 is no longer supported on this forum. Please update to 1.15 or 1.16 to receive support.

If you're asking if older mods are compatible with 1.16 not they are not. But installing forge 1.16 it will not break other forge installs as long as you have separate mod folders.

Custom Quests is broken you can try removing its config files or any JSON files for the mod as they may be causing the crash. If that doesn't work remove the mod entirely.

This is the best joke I have seen all day.

The specific error has to do with twitch for whatever reason being unable to download forge for more information as to why you can ask them.

It is mainly just fixing errors but as it is with coding just because there aren't any errors doesn't mean it will work. The things the code does could have changed and some stuff is added or removed entirely.