Fatal error: Uncaught Error: Non-static method Improved_Simpler_CSS::init() cannot be called statically in /home/httpd/vhosts/shiatsu4life.ch/httpdocs/wordpress/wp-content/plugins/imporved-simpler-css/improved-simpler-css.php:384
Stack trace:
#0 /home/httpd/vhosts/shiatsu4life.ch/httpdocs/wordpress/wp-settings.php(473): include_once()
#1 /home/httpd/vhosts/shiatsu4life.ch/httpdocs/wordpress/wp-config.php(88): require_once('/home/httpd/vho...')
#2 /home/httpd/vhosts/shiatsu4life.ch/httpdocs/wordpress/wp-load.php(50): require_once('/home/httpd/vho...')
#3 /home/httpd/vhosts/shiatsu4life.ch/httpdocs/wordpress/wp-blog-header.php(13): require_once('/home/httpd/vho...')
#4 /home/httpd/vhosts/shiatsu4life.ch/httpdocs/index.php(17): require('/home/httpd/vho...')
#5 {main}
  thrown in /home/httpd/vhosts/shiatsu4life.ch/httpdocs/wordpress/wp-content/plugins/imporved-simpler-css/improved-simpler-css.php on line 384