Installation: MkDir error

I Get the following errors trying to do an install. Any help?

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Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: mkdir(/usr/local/lib/php/.registry) function.mkdir: Permission denied in /usr/local/lib/php/System.php on line 249

Warning: preg_match() expects parameter 2 to be string, array given in /usr/www/users/justdo/bitweaver/liberty/plugins/format.pearwiki_general.php on line 25

Warning: session_start() function.session-start: Cannot send session cache limiter - headers already sent (output started at /usr/local/lib/php/System.php:249) in /usr/www/users/justdo/bitweaver/users/bit_setup_inc.php on line 61

Warning: Cannot modify header information - headers already sent by (output started at /usr/local/lib/php/System.php:249) in /usr/www/users/justdo/bitweaver/users/bit_setup_inc.php on line 104

Warning: Cannot modify header information - headers already sent by (output started at /usr/local/lib/php/System.php:249) in /usr/www/users/justdo/bitweaver/install/install_welcome.php on line 14

Appears your error is being generated by the file /usr/local/lib/php/System.php and not from Bitweaver.

Might want to look into what it does and why its trying to write to /usr/local/lib/php/.registry