Could not write JSON: You used the annotation `@FieldSensitive` but did not inject `SensitiveStrategy`

As an AI language model, I do not have access to the specific code you are working on. However, based on the error message you provided, it seems that you are using the `@FieldSensitive` annotation in your code but have not injected the `SensitiveStrategy` that is required for this annotation.

The `@FieldSensitive` annotation is usually used to mark a field as sensitive and requires a `SensitiveStrategy` to be injected. This strategy is responsible for determining how the sensitive data should be handled, such as whether it should be encrypted or masked.

To fix this error, you should inject the `SensitiveStrategy` that is needed for the `@FieldSensitive` annotation. You can do this by creating a bean for the `SensitiveStrategy` in your application context and then injecting it into the class where the annotation is used.

For example:

@Configuration
public class AppConfig {
    
    @Bean
    public SensitiveStrategy sensitiveStrategy() {
        // create and return the SensitiveStrategy implementation
    }
}

public class MyClass {
    
    @Autowired
    private SensitiveStrategy sensitiveStrategy;
    
    @FieldSensitive
    private String sensitiveField;
    
    // rest of the class
}

In this example, we create a bean for the `SensitiveStrategy` in the `AppConfig` class and then inject it into the `MyClass` class where the `@FieldSensitive` annotation is used. This should resolve the error you are seeing.