Please help. I use a zend framework 2 console application and crated a cron job like a /usr/bin/php [web_root]/public/index.php notify meterplan this script write a log file into ....../web/data/log and in the cron.log I see this message : ErrorException fopen(./data/log/2017-11-10-meter-plan-report.log): failed to open stream: Permission denied and "./data/log/2017-11-10-meter-plan-report.log" cannot be opened with mode "a" whats going wrong, what should I do to fix it? A client has a FullCron option.