Cannot execute index.php

Nextcloud: 12.0.3
OS: Linux Mint 18.2
Server: apache2 + MySQL

Hi. I’ve just migrated from free domain to normal and tried to set nextcloud in the subdomain.
So I downloaded latest version of nextcloud and extracted folder content to my folder /var/www/nextcloud, my domain is in the /var/www/html. Next, as usual, I did:

sudo chown -R www-data:www-data /var/www/nextcloud

and opened nextcloud.mydomain.com/index.php.

So if inside the domain (/var/www/html/nextcloud) this worked just fine, now it’s not. Instead, I see this:

image

What should I do to run this script? I’ve tried to set chown -R /var/www/, got nothing. Apache2 errors log is empty for errors, too.

ls -l /var/www/nextcloud

drwxr-xr-x 31 www-data www-data 4096 Nov 14 22:39 3rdparty
drwxr-xr-x 36 www-data www-data 4096 Nov 14 22:39 apps
-rw-r–r— 1 www-data www-data 8868 Sep 20 00:12 AUTHORS
drwxr-xr-x 2 www-data www-data 4096 Nov 14 22:39 config
-rw-r–r— 1 www-data www-data 4050 Sep 20 00:12 console.php
drwxr-xr-x 16 www-data www-data 4096 Nov 14 22:39 core
-rw-r–r— 1 www-data www-data 5057 Sep 20 00:12 cron.php
-rw-r–r— 1 www-data www-data 41077 Sep 20 00:12 db_structure.xml
-rw-r–r— 1 www-data www-data 179 Sep 20 00:12 index.html
-rw-r–r— 1 www-data www-data 2804 Sep 20 00:12 index.php
drwxr-xr-x 3 www-data www-data 4096 Nov 14 22:39 l10n
drwxr-xr-x 6 www-data www-data 4096 Nov 14 22:39 lib
-rw-r–r— 1 www-data www-data 283 Sep 20 00:12 occ
drwxr-xr-x 2 www-data www-data 4096 Nov 14 22:39 ocs
drwxr-xr-x 2 www-data www-data 4096 Nov 14 22:39 ocs-provider
-rw-r–r— 1 www-data www-data 3152 Sep 20 00:12 public.php
-rw-r–r— 1 www-data www-data 5323 Sep 20 00:12 remote.php
drwxr-xr-x 4 www-data www-data 4096 Nov 14 22:39 resources
-rw-r–r— 1 www-data www-data 26 Sep 20 00:12 robots.txt
drwxr-xr-x 14 www-data www-data 4096 Nov 14 22:39 settings
-rw-r–r— 1 www-data www-data 2110 Sep 20 00:12 status.php
drwxr-xr-x 3 www-data www-data 4096 Nov 14 22:39 themes
drwxr-xr-x 2 www-data www-data 4096 Nov 14 22:39 updater
-rw-r–r— 1 www-data www-data 435 Sep 20 00:14 version.php

I did not enable php7.0 and mpm_prefork.

So I did:
sudo a2enmod php7.0
sudo a2dismod mpm_event
sudo a2enmod mpm_prefork

Now it works.