Event Calendar got 500 error

Share List Symptom Event Calendar stop working. /events/, and event page shows 500 error. /contact/ page shows 500 error. Problem .htaccess file was changed. Working file: # HTTPS forced by SG-Optimizer <IfModule mod_rewrite.c> RewriteEngine On RewriteCond %{HTTPS} off RewriteRule ^(.*)$ https://%{SERVER_NAME}%{REQUEST_URI} [R=301,L] </IfModule> # END HTTPS # BEGIN WordPress <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / … Continue reading Event Calendar got 500 error