500 error after update

In phpmyadmin search : SELECT * FROM wp_options WHERE option_name=”template” OR option_name=”stylesheet” OR option_name=”current_theme”; then : UPDATE wp_options SET option_value=”yourthemename” WHERE option_name=”template”; UPDATE wp_options SET option_value=”yourthemename” WHERE option_name=”stylesheet”; UPDATE wp_options SET option_value=”yourthemename” WHERE option_name=”current_theme”; or if you want to go back to default (presuming some default exists) SET option_value=”default” WHERE option_name=”template”; UPDATE wp_options SET option_value=”default” … Read more