because recovery commands not running. only electricity corruption. not hard drive failure. all my data crashed. and can't recover. not enough documentation. data recovery firms want 6000 eur.
4 5TB virtual drive(vdi)
raid0 and btrfs.
i am using DSM 5.2-5644 Update 5
my php version "You cannot update because WordPress 5.2 requires PHP version 5.6.20 or higher. You are running version 5.5.31."
how can i upgrade php version. thank you.
php 7 or php 5.