I have two PHP errors that I do not know how to fix. I can't access the dashboard (empty code/white screen), but the redirect site at the root address is still active.
The errors as recorded in the log are:
[21-Jan-2014 02:04:18 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /mnt/stor09-wc1-ord1/------/------/www.1234567.com/web/content/wp-content/plugins/th0ths-quotes/th0ths-quotes-widget.php:1) in /mnt/stor09-wc1-ord1/-----/-----/www.1234567.com/web/content/wp-includes/pluggable.php on line 896
[20-Jan-2014 23:38:54 UTC] PHP Warning: htmlspecialchars() [function.htmlspecialchars]: Invalid multibyte sequence in argument in /mnt/stor09-wc1-ord1/-----/-----/www.1234567.com/web/content/wp-includes/formatting.php on line 3019
I've pulled up both php files and have located the lines of error, but I have no idea what to do with it. Any help is greatly appreciated.