Fix PageFatalReactError

✅ Solution

PageFatalReactError in Kibana often arises from unexpected null/undefined values encountered in React components, especially when accessing properties of objects retrieved from API responses or UI settings. To fix it, add null/undefined checks and defensive coding (e.g., optional chaining `?.`, nullish coalescing `??`) before accessing potentially missing properties. Additionally, ensure data transformations and mappings handle edge cases gracefully to prevent unexpected data types from propagating into React components.