One of your dependencies (node_modules) imports a CSS Modules file.
This normally happens when a package's source files are accidentally consumed, instead of the built package.
Reach out to the maintainer and ask for them to publish a compiled version of their dependency.
Compiled dependencies do not have references to CSS Module files, or any other files that require bundler-specific integrations.
The dependency should also provide instructions about what CSS needs to be imported by you, in your application.
If this is first party code, try including said monorepo package in the compilation pipeline.