Gettin WordPress Error

I am getting some errors…by mistake i deleted some files from my control panel….

so please help me….

i am getting these kind of errors

Deprecated: Function split() is deprecated in /home/indiancy/public_html/wp-includes/rss.php on line 104

Deprecated: Function split() is deprecated in /home/indiancy/public_html/wp-includes/rss.php on line 104

Deprecated: Function split() is deprecated in /home/indiancy/public_html/wp-includes/rss.php on line 104

Deprecated: Function split() is deprecated in /home/indiancy/public_html/wp-includes/rss.php on line 104

Deprecated: Function split() is deprecated in /home/indiancy/public_html/wp-includes/rss.php on line 104

Deprecated: Function split() is deprecated in /home/indiancy/public_html/wp-includes/rss.php on line 104

Deprecated: Function split() is deprecated in /home/indiancy/public_html/wp-includes/rss.php on line 104

Deprecated: Function split() is deprecated in /home/indiancy/public_html/wp-includes/rss.php on line 104

Deprecated: Function split() is deprecated in /home/indiancy/public_html/wp-includes/rss.php on line 104