Error Connecting to a postgres database during setup

[alkelaun]

I receive the following error during the third step of the web setup:

Cannot connect to the database.
Details
The frontend does not match Zabbix database.

I'm using:
Ubuntu 16.10
nginx
php7.0
postgresql
zabbix 3.2

I'm using the repository version from here:

https://www.zabbix.com/documentation/3.2/manual/installation/install_from_packages/repository_installation

(I realize it's unsupported, but I'm not sure why it's not working)

I've followed the directions here for creating the database:

https://gist.github.com/jtzero/22ee8e052c10f186b4f2d5e66ecef191

My settings for the page are:
databasetype PostgreSQL
database host: localhost
database port: 0
database name: zabbix2
database schema: [blank]
user: zabbix
password: zabbix [have tried others]

Any help (or links to tutorials) would be appreciated. My google-fu has run out.

[Atsushi]

The frontend does not match Zabbix database.

The output of this message means that the PHP application and the database version do not match.

Is the database newly created?
If you have created a new one, please check whether the SQL statement at the time of database creation was for 3.2.