The stream or file log file could not be opened in append mode: failed to open stream: Permission denied code example
Example 1: storage/logs/laravel.log" could not be opened: failed to open stream: Permission denied
$ chmod -R 775 storage bootstrap/cache
Example 2: could not be opened in append mode: failed to open stream: Permission denied
sudo chown -R $USER:www-data storage
sudo chown -R $USER:www-data bootstrap/cache