Warning: Cannot modify header information

I installed the wordpress file upload plugin and have been gettig the following errors: can anyone please help me fix this as these show on my website…

Warning: include_once(/home/content/p3nexnas05_data01/46/2175646/html/wp-content/plugins/wordpress-file-upload-pro/lib/.svn): failed to open stream: No such file or directory in /home/content/p3nexnas05_data01/46/2175646/html/wp-content/plugins/wordpress-file-upload-pro/wordpress_file_upload.php on line 88

Warning: include_once(): Failed opening ‘/home/content/p3nexnas05_data01/46/2175646/html/wp-content/plugins/wordpress-file-upload-pro/lib/.svn’ for inclusion (include_path=’.:/usr/local/php5_4/lib/php’) in /home/content/p3nexnas05_data01/46/2175646/html/wp-content/plugins/wordpress-file-upload-pro/wordpress_file_upload.php on line 88

Warning: Cannot modify header information – headers already sent by (output started at /home/content/p3nexnas05_data01/46/2175646/html/wp-content/plugins/wordpress-file-upload-pro/wordpress_file_upload.php:88) in /home/content/p3nexnas05_data01/46/2175646/html/wp-admin/post.php on line 235

Warning: Cannot modify header information – headers already sent by (output started at /home/content/p3nexnas05_data01/46/2175646/html/wp-content/plugins/wordpress-file-upload-pro/wordpress_file_upload.php:88) in /home/content/p3nexnas05_data01/46/2175646/html/wp-includes/pluggable.php on line 1121