Try mod versions: 1.7.1, 1.7.4, 1.7.5
Fabric API version: fabric-api-0.90.0+1.20.1

Failed to load class: dev.draylar.magna.api.MagnaTool

Uploading log.txt…

Usually happens when another mod loads the wrong version of Magna.

There are only this mods:

@Technici4n

Please post the log again, your link doesn't work

@Technici4n, reuploaded log. Thanks for your attention.
log.txt

looks like it's fail to calculate expresion:
[08:48:92] [ForkJoinPool-1-worker-9/WARN]: Mod magna uses the version ${version} which isn't compatible with Loader's extended semantic version format (Could not parse version number component '${version}'!), SemVer is recommended for reliably evaluating dependencies and prioritizing newer version

Ah, unfortunately I don't support tlauncher.

@Technici4n, I can try another. Which is the best for you? I wil try it

Try it with MultiMC, works fine, Thanks for help.