DaemonUmbra

Use Forge 14.23.5.2781 or later, one or more of your mods require a version more recent than the recommended.

That doesn't look like a debug.log, looks like a latest.log Also that is not a crash, it's just Windows saying it thinks the game has frozen, this is not uncommon on lower-end hardware.

Please do not Necro old threads. 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.

Please read the "Logs" section of my signature and post your debug.log in the preferred manner.

Delete the config file

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.

Did you read my signature like I said? It explains what file has the information we need to help you, explains where to find it, and gives two services we would prefer you used to post it.

Please read the "Logs" section of my signature and post your debug.log in the preferred manner.

Run java -version The only possible cause of this error is the use of Java 9+

Do you mean dynamically generating textures? Or are you changing the texture based on data in the item?

Please keep these forums in English and refrain from necro-ing threads (posting in threads that are really old).

You must use Java 8

What do you not understand?

Please post your debug.log, it has more information than latest.log

Try going into the .minecraft\versions and .minecraft\libraries\net\minecraftforge\forge folders and deleting the folders for that version of Forge before re-installing.

Please read the "Logs" section of my signature and post your debug.log in the preferred manner.

How did you install Pixelmon?

Please read the "Logs" section of my signature and post your debug.log in the preferred manner.

Did you read my signature?

Please don't necro threads like this.

Please read the "Logs" section of my signature below and post your debug.log in the preferred manner.

I would recommend for the future that you get a text editor capable of doing Find & Replace, I tend to use VSCode but there are a lot of editors out there and it's mostly up to personal taste.

No... merged again. How many times are you going to make a new thread with the same crash log?

Merged your threads

I'm not too keen on giving support through private channels. Is your username really your full name or is it just your first name?