Already solved, my program can run by add this injection at class MasterDebiturBatchConfig

@Bean
@StepScope
public DebtorReader debtorReader(@Value("#{jobParameters['filePath']}") String filePath) {
    return new DebtorReader(filePath);
}

and remove this annotation and constructor at DebtorReader

@Component
@StepScope
@Scope(proxyMode = ScopedProxyMode.TARGET_CLASS)