Got application error 500

i got a aplication error for my site it says you need to check your log in my log it says nothing about it i was searching on this forum and it could be my .htaccess

this is my config of .htaccess

RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R,L]

BEGIN cache image files

<FilesMatch “.(?i:gif|jpe?g|png|ico|css|js|swf)$”>

Header set Cache-Control “max-age=172800, public, must-revalidate”

END cache image files

BEGIN Compress text files

AddOutputFilterByType DEFLATE text/html text/xml text/css text/plain AddOutputFilterByType DEFLATE image/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 application/json AddOutputFilterByType DEFLATE application/x-font-ttf application/x-font-otf AddOutputFilterByType DEFLATE font/truetype font/opentype # END Compress text files

Order Deny,Allow
#Ban Sweety
Deny from 62.131.54.232
Deny from 86.90.49.181
Deny from 84.87.177.135
Deny from 86.86.34.185
Deny from 77.251.17.217

Never use cache plugins.
Please delete the htaccess