Slight Exception message changes

[Asleeepp]

Description

Honestly, I'm not really the biggest fan of how the exception is laid out, especially lines 1759-1763, and the constant "You'll be given instructions on how to report this", but I'd rather not change that. This PR aims to fix some punctation errors I found, and also reword some sentences.

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Target Minecraft Versions: any Requirements: none Related Issues: none