Notice: Only variables should be passed by reference in /customers/1/c/2/linkopingsrk.se/httpd.www/wp-content/plugins/background-manager/vendor/pf4wp/lib/bootstrap.php on line 10

Notice: register_uninstall_hook was called <strong>incorrectly</strong>. Only a static class method or function can be used in an uninstall hook. Please see <a href="https://wordpress.org/support/article/debugging-in-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 3.1.0.) in /customers/1/c/2/linkopingsrk.se/httpd.www/wp-includes/functions.php on line 5229

Fatal error: Uncaught Error: Call to undefined function create_function() in /customers/1/c/2/linkopingsrk.se/httpd.www/wp-content/plugins/revslider/inc_php/framework/functions_wordpress.class.php:240
Stack trace:
#0 /customers/1/c/2/linkopingsrk.se/httpd.www/wp-content/plugins/revslider/revslider.php(75): UniteFunctionsWPRev::registerWidget('RevSlider_Widge...')
#1 /customers/1/c/2/linkopingsrk.se/httpd.www/wp-settings.php(377): include_once('/customers/1/c/...')
#2 /customers/1/c/2/linkopingsrk.se/httpd.www/wp-config.php(90): require_once('/customers/1/c/...')
#3 /customers/1/c/2/linkopingsrk.se/httpd.www/wp-load.php(37): require_once('/customers/1/c/...')
#4 /customers/1/c/2/linkopingsrk.se/httpd.www/wp-blog-header.php(13): require_once('/customers/1/c/...')
#5 /customers/1/c/2/linkopingsrk.se/httpd.www/index.php(17): require('/customers/1/c/...')
#6 {main}
  thrown in /customers/1/c/2/linkopingsrk.se/httpd.www/wp-content/plugins/revslider/inc_php/framework/functions_wordpress.class.php on line 240