Check my .htaccess

Could you please check my .htaccess please, the file has been modifieed recently, my website is dead,since I updated the wordpress to 5.3, the host need do some changes.
See bellow:
# HTTPS forced by SG-Optimizer
<IfModule mod_rewrite.c>
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteRule ^ https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteCond %{HTTPS} off
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
</IfModule>
# END HTTPS

# BEGIN WordPress
# The directives (lines) between BEGIN WordPress and END WordPress are
# dynamically generated, and should only be modified via WordPress filters.
# Any changes to the directives between these markers will be overwritten.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

<files wp-config.php>
order allow,deny
deny from all
</files>

# Block WordPress xmlrpc.php requests
<Files xmlrpc.php>
order deny,allow
deny from all
allow from 123.123.123.123
</Files>

# Leverage Browser Caching by SG-Optimizer
<IfModule mod_expires.c>
ExpiresActive on
ExpiresDefault “access plus 6 months”
# CSS
ExpiresByType text/css “access plus 1 year”
# HTML components (HTCs)
ExpiresByType text/x-component “access plus 2 months”
# HTML
ExpiresByType text/html “access plus 6 months”
# JavaScript
ExpiresByType application/javascript “access plus 1 year”
ExpiresByType application/x-javascript “access plus 1 year”
# Manifest files
ExpiresByType application/x-web-app-manifest+json “access plus 0 seconds”
ExpiresByType text/cache-manifest “access plus 0 seconds”
# Media
ExpiresByType audio/ogg “access plus 1 year”
ExpiresByType image/gif “access plus 1 year”
ExpiresByType image/jpg “access plus 1 year”
ExpiresByType image/jpeg “access plus 1 year”
ExpiresByType image/png “access plus 1 year”
ExpiresByType image/svg “access plus 1 year”
ExpiresByType image/svg+xml “access plus 1 year”
ExpiresByType video/mp4 “access plus 1 year”
ExpiresByType video/ogg “access plus 1 year”
ExpiresByType video/webm “access plus 1 year”
ExpiresByType image/x-icon “access plus 1 year”
ExpiresByType application/pdf “access plus 1 year”
ExpiresByType application/x-shockwave-flash “access plus 1 year”
# Web feeds
ExpiresByType application/atom+xml “access plus 1 hour”
ExpiresByType application/rss+xml “access plus 1 hour”
# Web fonts
ExpiresByType application/font-woff “access plus 1 year”
ExpiresByType application/font-woff2 “access plus 1 year”
ExpiresByType application/vnd.ms-fontobject “access plus 1 year”
ExpiresByType application/x-font-ttf “access plus 1 year”
ExpiresByType font/opentype “access plus 1 year”
</IfModule>
# END LBC
# START PHP VERSION CHANGE forced by SG Optimizer
AddHandler application/x-httpd-php70 .php .php5 .php4 .php3
# END PHP VERSION CHANGE
# GZIP enabled by SG-Optimizer
<IfModule mod_deflate.c>
<IfModule mod_filter.c>
AddOutputFilterByType DEFLATE “application/atom+xml” \
“application/javascript” \
“application/json” \
“application/ld+json” \
“application/manifest+json” \
“application/rdf+xml” \
“application/rss+xml” \
“application/schema+json” \
“application/vnd.geo+json” \
“application/vnd.ms-fontobject” \
“application/x-font-ttf” \
“application/x-javascript” \
“application/x-web-app-manifest+json” \
“application/xhtml+xml” \
“application/xml” \
“font/eot” \
“font/opentype” \
“image/bmp” \
“image/svg+xml” \
“image/vnd.microsoft.icon” \
“image/x-icon” \
“text/cache-manifest” \
“text/css” \
“text/html” \
“text/javascript” \
“text/plain” \
“text/vcard” \
“text/vnd.rim.location.xloc” \
“text/vtt” \
“text/x-component” \
“text/x-cross-domain-policy” \
“text/xml”
</IfModule>
</IfModule>
# END GZIP

## EXPIRES CACHING ##

## EXPIRES CACHING ##
<Files 403.shtml>
order allow,deny
allow from all
</Files>
deny from 52.17.43.61

# Wordfence WAF
# END Wordfence WAF

# BEGIN WP Performance Score Booster Settings
# END WP Performance Score Booster Settin

The page I need help with: [log in to see the link]