I use Cron Job in my project. when Cron has any exception, it will create a new log files to storage folder. the same day, if web browser has any exception. it can able to write the error to that existing log file too.
But if the web browser create a log error file first, then Cron can not log any error to that file. it said storage/logs/laravel-2019-10-18.log" could not be opened: failed to open stream: Permission denied