Armazenamento/logs/Laravel.log "Não pôde ser aberto: Falha ao abrir o fluxo: permissão negada
$ chmod -R 775 storage bootstrap/cache
Shiny Snake
$ chmod -R 775 storage bootstrap/cache
chmod -R 775 storagesudo chown -R $USER:www-data storage
sudo chown -R $USER:www-data bootstrap/cacheCould be that although you have 755/777 permissions, SELinux is blocking httpd from writing/creating dirs.:
chcon -R -t httpd_sys_content_t /var/www/html
sudo chcon -R -t httpd_sys_rw_content_t /var/www/mrr/public/textpipe
sudo chgrp apache -R /var/www/html/files
chmod g+s .