htaccess重写规则错误无法正常工作

Question

here is my htaccess rule i wanna why all pages going to dashboard means dashboard.php all pages showing dashboard.php

pls help me to sort out this problem..

RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d


ErrorDocument 400 /error-400.php
ErrorDocument 401 /error-401.php
ErrorDocument 403 /error-403.php
ErrorDocument 404 /error-404.php
ErrorDocument 500 /error-500.php

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([a-zA-Z0-9_-]+)$ dashboard.php [L]
RewriteRule ^([a-zA-Z0-9_-]+)/$ dashboard.php [L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([a-zA-Z0-9_-]+)$ logout.php [L] 
RewriteRule ^([a-zA-Z0-9_-]+)/$ logout.php [L]


RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([a-zA-Z0-9_-]+)$ category.php?pCategory=$1 [L] 
RewriteRule ^([a-zA-Z0-9_-]+)/$ category.php?pCategory=$1 [L]


RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([a-zA-Z0-9_-]+)/([a-zA-Z0-9_-]+)$ subcategory.php?pCategory=$1&cCategory=$2 [L] 
RewriteRule ^([a-zA-Z0-9_-]+)/([a-zA-Z0-9_-]+)/$ subcategory.php?pCategory=$1&cCategory=$2 [L]

thanx in advance