Forge works normally launching minecraft and can open other worlds with the same mods. Sometimes it can show me the world for a brief second before crashing, usually it crashes while the screen says 'loading terrain'. The error message says ' java.io.eofexception: unexpected end of zlib input stream'

 

https://drive.google.com/drive/folders/1_QQswKdZlIRgy9DtlbYs1nCjFvlRkILI?usp=drive_link

This is a link to a folder containing the crash log and other logs, please let me know if more info is needed. Any help saving this 1.5+ year world would be greatly appreciated

 

Edited May 11May 11 by guciguwop
include link

The crash points to a Create Schematicannon:

Details:
Name: create:schematicannon // com.simibubi.create.content.schematics.cannon.SchematicannonBlockEntity
Block: Block{create:schematicannon}
Block location: World: (784,63,2397), Section: (at 0,15,13 in 49,3,149; chunk contains blocks 784,-64,2384 to 799,319,2399), 
Region: (1,4; contains chunks 32,128 to 63,159, blocks 512,-64,2048 to 1023,319,2559)
Block: Block{create:schematicannon}

 

Backup the world - then try to remove the cannon with an NBT Editor

https://github.com/jaquadro/NBTExplorer

Go to the worldsave, region folder

Open the r.1.4.mca file

Click on Find - Search

Checkmark value and type: 2397

Search for it and use the binoculars (top right) to skip through the results

Find Pos 784,63,2397

This should be create:schematicannon

Click on it and delete it - then save it and test the world again

 

If you have issues, you also can upload the r.1.4.mca here with sites like mediafire - then I will look into it

That fixed it! Thank you so much