Error, plugin not useable

I am also experiencing an issue when editing (saving) a post. I get the same first two errors and two different ones. This issue began when the site I manage was updated to WordPress 3.9.1 (about a month ago).

Notice: Undefined variable: explicit in /home/content/w/i/e/wiensgd/html/wp-content/plugins/seriously-simple-podcasting/classes/class-seriously-simple-podcasting.php on line 332

Notice: Undefined variable: block in /home/content/w/i/e/wiensgd/html/wp-content/plugins/seriously-simple-podcasting/classes/class-seriously-simple-podcasting.php on line 332

Warning: Cannot modify header information - headers already sent by (output started at /home/content/w/i/e/wiensgd/html/wp-content/plugins/seriously-simple-podcasting/classes/class-seriously-simple-podcasting.php:332) in /home/content/w/i/e/wiensgd/html/wp-admin/post.php on line 235

Warning: Cannot modify header information - headers already sent by (output started at /home/content/w/i/e/wiensgd/html/wp-content/plugins/seriously-simple-podcasting/classes/class-seriously-simple-podcasting.php:332) in /home/content/w/i/e/wiensgd/html/wp-includes/pluggable.php on line 1121

If you see these errors please switch debug mode off on your site. You should never run a live site with debug mode on, so this shouldn’t have any effect on any live site.

That being said, I will get this sorted out in a quick patch in the next couple of days.

Thanks Hugh, I look forward to the update.