https://paste.ee/p/5O7hG

no crash report ._ .

Missing or unsupported mandatory dependencies:
Mod ID: 'ftblibrary', Requested by: 'ftbquests', Expected range: '[2001.1.4,2001.2.0)', Actual version: '2001.2.1'
Mod ID: 'ftblibrary', Requested by: 'ftbchunks', Expected range: '[2001.1.3,2001.2.0)', Actual version: '2001.2.1'
Mod ID: 'fancymenu', Requested by: 'fmextension_audio', Expected range: '[2.14.0,3.0.0)', Actual version: '3.1.7'

Unsupported installed optional dependencies:
Mod ID: 'fmextension_audio', Requested by: 'fancymenu', Expected range: '[99999.0 FancyMenu v3+ does not support the audio extension. Please remove the extension.,99999.0 FancyMenu v3+ does not support the audio extension. Please remove the extension.]', Actual version: '1.1.1'
Mod ID: 'textrues_embeddium_options', Requested by: 'embeddium', Expected range: '[0.0.0-NOT-COMPATIBLE,0.0.0-NOT-COMPATIBLE]', Actual version: '0.1.5+mc1.20.1'

Fix these first

Done, it still crashed.

New log https://paste.ee/p/kYv6e

Missing or unsupported mandatory dependencies:
Mod ID: 'ftblibrary', Requested by: 'ftbquests', Expected range: '[2001.2.1,)', Actual version: '2001.2.0'
Mod ID: 'ftblibrary', Requested by: 'ftbchunks', Expected range: '[2001.1.3,2001.2.0)', Actual version: '2001.2.0'

Try different builds of FTBLibrary, FTBQuests and FTBChunks until you find a working combination

It worked, thank you =D