Need help facebook liked post url

hello all i need help to fix it when i like some post in my site everything is fine but when i click on post i get broken url example:

my .htaccess

# =========================================================================
# Files protection
# =========================================================================
<FilesMatch "\.(jpg|jpeg|png|gif|swf)$">
Header set Cache-Control "max-age=604800, public"
</FilesMatch>
<FilesMatch "\.(xml|txt|css|js)$">
Header set Cache-Control "max-age=172800, proxy-revalidate"
</FilesMatch>
<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/html text/xml text/css text/plain
AddOutputFilterByType DEFLATE img/svg+xml application/xhtml+xml application/xml
AddOutputFilterByType DEFLATE application/rdf+xml application/rss+xml application/atom+xml
AddOutputFilterByType DEFLATE text/javascript application/javascript application/x-javascript
AddOutputFilterByType DEFLATE application/x-font-ttf application/x-font-otf
AddOutputFilterByType DEFLATE font/truetype font/opentype
</IfModule>

# =========================================================================
# Error handler
# =========================================================================
# Change the site path if needed
# Example:
# ErrorDocument 404 /folder/index.php?cont=error
# -------------------------------------------------------------------------
ErrorDocument 500 /index.php?cont=error&cod=500
ErrorDocument 404 /index.php?cont=error&cod=404
ErrorDocument 403 /index.php?cont=error&cod=403
ErrorDocument 401 /index.php?cont=error&cod=401
ErrorDocument 400 /index.php?cont=error&cod=400

# =========================================================================
# Url rewrite
# =========================================================================
<IfModule mod_rewrite.c>
    RewriteEngine On

RewriteRule ^([^/\.]+)/arcade/gamedata/([_A-Za-z0-9-]+)/([_A-Za-z0-9-]+)\.([_A-Za-z0-9-]+)$ arcade/gamedata/$2/$3.$4 [L]
RewriteRule ^([^/\.]+)/index\.php index.php

    # -------------------------------------------
    # Change the site path if needed
    # Example: RewriteBase  /folder/
    # -------------------------------------------
    RewriteBase /

    # Block queries containing http(s):// or ftp://
    RewriteCond %{QUERY_STRING} (.*)(http|https|ftp):\/\/(.*)
    RewriteRule ^(.+)$ - [F]

    # Block libwww-perl user agent
    RewriteCond %{HTTP_USER_AGENT} ^libwww-perl
    RewriteRule ^(.+)$ - [F]
    # Mod-rewrite
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^(.*)$ index.php?cont=$1 [L,QSA]


</IfModule>

PHP: