use IlluminateSupportFacadesLog;
Log::debug('Debug Log Tracked');
Log::emergency('Emergency Log Tracked');
Log::alert('Alert Log Tracked');
Log::error('Error Log Tracked');
Log::warning('Warning Log Tracked');
Log::notice('Notice Log Tracked');
Log::info('Info Log Tracked');
Log::critical('Critical Log Tracked');
YourLaravelProjectstoragelogs check date wise required log file
storage/logs/laravel.log