I cloned your reposite to my IDLE and when i run the build.gradle an error occures telling me

Could not GET 'https://dl.bintray.com/kyrptonaught/kyrptconfig/net/kyrptonaught/kyrptconfig/1.1.8-1.16/kyrptconfig-1.1.8-1.16.pom'. Received status code 403 from server: Forbidden

In the build.gradle you'll have to change my repository to "https://maven.kyrptonaught.dev"

See line 17 here

Thanks for the quick response.
Now a new error occurs:
Caused by: java.io.IOException: Downloaded file from http://resources.download.minecraft.net/bd/bdf48ef6b5d0d23bbb02e17d04865216179f510a to C:\Users\user.gradle\caches\fabric-loom\assets\objects\bd\bdf48ef6b5d0d23bbb02e17d04865216179f510a and got unexpected hash of bdf48ef6b5d0d23bbb02e17d04865216179f510a expected bdf48ef6b5d0d23bbb02e17d04865216179f510a

But the hashes are identical.
Do you now why?

Can you clear all the gradle cache and try to start it again? Sometimes gradle can be funky and a clear and reset can fix issues

That helped but:
C:\Users\user\Downloads\DiggusMaximus-master\src\main\java\net\kyrptonaught\diggusmaximus\config\Blacklist.java:4:43
java: package net.kyrptonaught.kyrptconfig.config does not exist

Sorry for spamming you. Its the first time i try to gradlew a mod

Thank you for your time. Unfortunatly i dont find a way to donwgrade my java so gradle except it.