Step by step to solve problem:
Just do this, don't change nothing in "taxonomy.php" file, it's not necessary.. mbeam done this to discover what was causing the crash.
1 -- Move (cut and paste) out the "podcasting" folder from "wp-content/plugins" folder
2 -- Access your site normally, again. It'll be fine.
3 -- Access your WordPress admin dashboard/panel.
4 -- Go to plugins and check out the red message/alert on top warning that "podcasting.php" is disabled due to a file missing, itself.
5 -- Move back the podcasting folder to plugins folder again, and it will return disabled.
6 -- Wait for a compatible version to update it and activate it again.