DaemonUmbra

What does your mod do, if I may ask?

First of all thank you for using the spoiler. Second,

Backdate Forge one version, JEI needs to be updated for a change made a little over a day ago.

Check the "Logs" section of my signature, "Twitch Launcher" sub-section, you'll find instructions and a video on how to run a Twitch pack without Twitch hanging over you causing issues like this.

Use Java instead of Javaw https://stackoverflow.com/a/8194750/8935781

Amazing, once again Twitch screws its users through screwing up their CDN/rehost servers. Is this when setting up a profile or running it?

Please provide a screenshot showing the details of the profile you're running

1.8.9 is no longer supported on this forum due to its age. Please update to a modern version of Minecraft to receive support.

Please do not hijack threads, if you have an issue please make your own.

Please read the "Logs" section of my signature below and provide the appropriate log in the appropriate manner.

Uploading the installer would do nothing, please provide a screenshot of the folder with your installer in it

Please read the "Logs" section of my signature below and provide the appropriate log in the appropriate manner.

Backdate Forge one version until Mezz updates JEI

The filenames of some of your mods suggests you are not getting them from official sources, please read my signature for more info on why this is a bad thing.

Yes... that's kinda the point

Delete your codechickenlib config.

Please do not hijack threads, if you have an issue please make your own.

What the hell is gbinvl?

Please provide your installer log, it will have the same name as the installer but with .log on the end: Installer: forge-{version}-installer.jar Log: forge-{version}-installer.jar.log Note: If you have Windows Explorer set to hide file extensions(as is the default setting), they will look like this: Installer: forge-{version}-installer Log: forge-{version}-installer.jar

... did you not understand my request for the log?

1.7.10 is no longer supported on this forum due to its age. Please update to a modern version of Minecraft to receive support.

What version of Minecraft are you playing?

You must use Java 8 to launch any Forge version before 1.13

Please provide the installer log then