I have BlueSpice extension installed along with the GoogleLogin. whenever I try to login to my wiki i get this following error.
2016/02/07 19:49:07 [error] 7983#0: *27223 FastCGI sent in stderr: "PHP message: PHP Fatal error: Cannot redeclare class UserPreferences in /var/www/deploys/wiki2/extensions/BlueSpiceExtensions/UserPreferences/UserPreferences.class.php on line 227" while reading response header from upstream, client: 184.108.40.206, server: wiki2.spotcap.com, request: "GET /index.php?title=Main_Page HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "wiki2.spotcap.com", referrer: "https://wiki2.spotcap.com/index.php?title=Special:UserLogin"
But when I disable any one of them; either BlueSpice or GoogleLogin then the error disappears. Can someone help please?