Fix CustomApplicationError

✅ Solution

The "CustomApplicationError" typically arises in ESLint when a rule (like `preserve-caught-error`) expects a standard `Error` constructor but encounters a custom error class that the rule doesn't recognize. To fix this, either configure the ESLint rule (if possible) to recognize your custom error class or modify your custom error class to inherit directly from the built-in `Error` object for broader compatibility. Ensure your custom error class correctly extends `Error` including proper constructor implementation to avoid unexpected behavior.