Owncloud 10: Problems with disabled ipv6

Hello, I have installed owncloud in a DMZ on a host with disabled ipv6 and the marketplace doesnt work ( see error below ). Also i get similar erros in data/owncoud.log. Is there fix to use ipv4 instead of ipv6? Or is there something different that I'm missing?

Thank you in advance for any help

Steps to reproduce

  1. Install owncloud 10
  2. disable ipv6
  3. try to use market
  4. look in data/owncloud.log

Expected behaviour

I expect marketplace to work and owncloud.log without errors

Actual behaviour

No marketplace connection: cURL error 7: Failed to connect to 2a01:4f8:161:73ec::2: Network is unreachable.
also another error in data/owncloud.log: cURL error 7: Failed to connect to 2a01:4f8:130:806f::5: Network is unreachable

Server configuration

Operating system: Centos 7

Web server: nginx 1.12.2

Database: MariaDB 10.1

PHP version: 7.1

ownCloud version: 10.0.3

Updated from an older ownCloud or fresh install: fresh install

Where did you install ownCloud from: official site ( source code )

Signing status (ownCloud 9.0 and above): No errors have been found.

The content of config/config.php: config_report_20171127.txt (66.2 KB)

Are you using external storage, if yes which one: local

Are you using encryption: no

Are you using an external user-backend, if yes which one: no

Looks to me like a question better directed to an forums of your used linux. I think networking related stuff is nothing what ownCloud is handling on its own.