htaccess重写rulle抛出500内部错误

Question

以下htaccess产生500内部错误。

IndexOptions +Charset=UTF-8
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{SCRIPT_FILENAME} !-d  
RewriteCond %{SCRIPT_FILENAME} !-f
RewriteRule ^signup$ ./signup.php [L]
RewriteRule ^login$ ./login.php [L]
RewriteRule ^reset$ ./reset.php [L]
RewriteRule ^makeABooking$ ./makeABooking.php [L]
RewriteRule ^fleets$ ./fleets.php [L]
RewriteRule ^viewFleet/(.*)$ ./viewFleet.php?fid=$1 [L]
RewriteRule ^career$ ./career.php [L]
RewriteRule ^viewJob/(.*)$ ./viewJob.php?jid=$1 [L]
RewriteRule ^apply/(.*)$ ./apply.php?jid=$1 [L]
RewriteRule ^career/(.*)/(.*)$ ./career.php?page=$1&srch=$2 [L]
RewriteRule ^conformContact/(.*)/(.*)$ ./conformContact.php?bid=$1&status=$2 [L]
RewriteRule ^conformBooking/(.*)/(.*)$ ./conformBooking.php?bid=$1&status=$2 [L]
RewriteRule ^profile/(.*)/(.*)/(.*)$ ./profile.php?tab=$1&page=$2&srch=$3 [L]
RewriteRule ^viewBooking/(.*)$ ./viewBooking.php?bid=$1 [L]
RewriteRule ^contact$ ./contact.php [L]
RewriteRule ^page/(.*)$ ./page.php?pid=$1 [L]
</IfModule>

我真的不明白从哪里抛出错误。感谢