OVH webhosting
OVH allows you to configure certain aspects of your account using a file .ovhconfig -
see documentation.
You may need to adjust some of these settings, by adding or updating lines in this file.
PHP interface
OVH provides two ways to call PHP scripts: php-cgi and php-fpm.
Many users report that php-fpm does not work with webtrees 2.0.
Some pages make a second call to the web-server to create parts of the page.
For example, some of the home-page blocks, the charts, the calendar, etc.
With php-fpm, these fail to load - and the page just displays a spinning wheel.
To select php-cgi, use this option in .ovhconfig.
app.engine=phpcgi
Mod-Security
The package mod-security is known to block certain webtrees scripts.
If some scripts fail silently, you can disable it using this option in .ovhconfig.
http.firewall=none
Environment
For performance, you should generally enable production mode, using this option in .ovhconfig.
environment=production
However, if you are experiencing problems, you can switch back to development mode while you investigate.
environment=development