.htaccess conflict - .htaccess

Question

This is my first question.
I have an wp-site on the root directory and it's own .htaccess file.
RewriteEngine off
<IfModule mod_suphp.c>
suPHP_ConfigPath /home/katambi/public_html/php.ini
<Files php.ini>
order allow,deny
deny from all
</Files>
</IfModule>
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
On another directory I've SocialEngine network site. It also has .htaccess file.
<IfModule mod_rewrite.c>
Options +FollowSymLinks
RewriteEngine On
# Get rid of index.php
RewriteCond %{REQUEST_URI} /index\.php
RewriteRule (.*) index.php?rewrite=2 [L,QSA]
# Rewrite all directory-looking urls
RewriteCond %{REQUEST_URI} /$
RewriteRule (.*) index.php?rewrite=1 [L,QSA]
# Try to route missing files
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} public\/ [OR]
RewriteCond %{REQUEST_FILENAME} \.(jpg|gif|png|ico|flv|htm|html|php|css|js)$
RewriteRule . - [L]
# If the file doesn't exist, rewrite to index
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?rewrite=1 [L,QSA]
</IfModule>
Problem: when i enter to package and plugins page it display 404 error. =(
When i delete code between
# BEGIN WordPress
and
# END WordPress
wp-site down but social network runs correct.
Thanks for your answers.

Answer 1

The code between # BEGIN WordPress and # END WordPress is redirecting all request to root directory's index.php. You need to make sure that requests to SocialEngine's directory is not being redirected. So you can try this solution- .htaccess & Wordpress: Exclude folder from RewriteRule