I installed a mod and it crashed my game

Thank you for your report!
However, this issue is Invalid.

Your game, launcher or server is modified.
If you can reproduce the issue in a vanilla environment, please recreate the issue.

• Any non-standard client/server/launcher build needs to be taken up with the appropriate team, not Mojang.

• A world which had previously been opened with a modified client might be corrupted. Please try reproducing the issue in a newly generated world.

• Any plugin issues need to be addressed to the creator of the plugin or resource pack.

• If you have problems on large servers like Hypixel, please contact them first as they run modified server software.

Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support (Technical Issues) – 📧 Microsoft Support (Account Issues)
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki

Officially you can only fix the original bugs, you can report this to the developers of the aether mod and it is recommended that you provide detailed logs to allow the developers to understand the cause of the crashes more quickly