When filling out email forms, it gives an error JavaScript must be enabled. Does not work on any browser on different PCs. I saw that the error may be in the .htaccess file but did not understand how to fix it.

https://www.c-terra.ru

Config .htaccess: 

# WebSite X5 - Стартовый код [не редактировать]

SetOutputFilter DEFLATE

# WebSite X5 — Завершить код
RewriteEngine на
SetEnvIf X-Forwarded-Proto https SERVER_PORT=443
SetEnvIf X-Forwarded-Proto https HTTPS=on
RewriteCond %{HTTP:HTTPS} !=on [NC]
RewriteRule ^(.*)$ https: //%{SERVER_NAME}%{REQUEST_URI} [R=301,L]