RewriteEngine on
RewriteCond %{REQUEST_URI} !^/_wpez136/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /_wpez136/$1
RewriteCond %{HTTP_HOST} ^(www.)?occcustomsite10.com$ [NC]
RewriteRule ^(/)?$ _wpez136/index.php [L]
ErrorDocument 404 /_wpez136/index.php?error=404