Fix NotAnError

✅ Solution

The "NotAnError" TypeScript error usually arises when a type representing an error is used where a generic type or conditional type expects a concrete error class or interface. Ensure that your error types are properly defined (e.g., using `class` or `interface`) and that you are correctly referencing or extending built-in `Error` types to satisfy the compiler's type constraints; explicitly cast or use type guards if necessary to narrow the type to a known error type.