Here is the error message suddenly appear. It seems to me something went wrong with the wordpress plugin.
Warning: Invalid argument supplied for foreach() in /home/powecha8/public_html/blogontshirt/wp-includes/capabilities.php on line 31
Warning: Invalid argument supplied for foreach() in /home/powecha8/public_html/blogontshirt/wp-includes/classes.php on line 88
I have also got the following error because I used the excerpt_reloaded plugin, which is using the above two php files.
Fatal error: Call to undefined function: the_excerpt_reloaded() in /home/powecha8/public_html/blogontshirt/wp-content/themes/silhouette-3column/home.php on line 20
The problem is because the PHP magic_quote was on. I guess the hosting company reset the value and make it default to ON, which should be turned off.
Add the following line to the customized php.ini file under the root of the hosting account.
Add the following lines in to the .htaccess file at your root of hosting account.