Serkan Bekiroğulları, you're not eligible to remove the Oxwall attribution link from your website. We do not provide assistance to such users.

Please read this: http://www.oxwall.org/attribution .

I understand you

dependent address Oxwall site

I just change the picture

Serkan Bekiroğulları, you have to upload one of our approved images to your site. You are not eligible to use other image. Please see the link in my post above.

necessary arrangements were made.

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What is the cause of the problem site update does?.

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I did not get the answer I wanted to get license.

I understand that you do not leave the obligatory application in other publisher. mandatory release of nonsense is also a free platform.

Serkan Bekiroğulları, please perform the update in following order:

1. create site backup
2.  deactivate all third-party plugins
3. turn on 'Maintenance mode" in Admin Panel >Pages&Menus > Maintenance Page
4. enable DEBUG mode ( set to "true" in ow_includes/config.php)
5. perform platform update.
6. update all native Oxwall plugins. Don't check your site until you update all of them
7. enable DEV mod in ow_includes/config.php
8. Turn "Maintenance Mode" off.
9. refresh any site page and disable DEV MODE: define('OW_DEV_MODE', false);

If everything is ok, activate and update third party plugins one by one. Check your site after updating each plugin. Contact plugin developer if you get any issues.