So i have installed cloth config api, the latest version.

and this appears on fabric loader crash window :

Incompatible mod set!
net.fabricmc.loader.impl.FormattedException: Mod resolution encountered an incompatible mod set!
A potential solution has been determined:
- Install cloth-config2, any version.
Unmet dependency listing:
- Mod 'Modern Beta Fabric' (modern_beta) 5.1.1+1.19.3 requires any version of cloth-config2, which is missing!
at net.fabricmc.loader.impl.FabricLoaderImpl.load(FabricLoaderImpl.java:190)
at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:148)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:68)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

wait forge? the thing said fabric on download page!