Trouble with migration from owncloud to nextcloud

Opensuse 15.0
Nginx 1.14.0
PHP 7.2.5

I use Opensuse 15.0. When i try migrate to Nextcloud in 13.0.8 (from repo) it tell me, that i cannot migrate from my version of owncloud.
I try menual install Nextcloud 12.0.13… but it unsupport my version php.

How i can migrate to nextcloud? Change version php or write version of my owncloud?