Describe the bug
error: "Internal Exception: java.nio.channels.Closedchannelexception" when play for a short amount of time and then move to the multiplayer scene (i play on SinglePlayer).This only happen with academycraft in the mods,It always happen.

To Reproduce
Expected behavior
Screenshots
Desktop:

• OS: Windows 8,64 bit
• MC Version and Forge version: ForgeOptifine 1.12.2 on Tlauncher
• Version 1.1.2 (newest)

Additional context
How to fix this?I really need help :(((