Urgent: Fix PHP backend blank page issue

I'm the owner of VertizontalRadio.com and I'm facing a critical issue with our backend. Whenever I try to add or update podcasts on our site, the backend produces a blank page. This leads to a situation where we are unable to update our existing podcasts and we also can't add any new ones.

Key Requirements:
- Fix the backend issue that's causing a blank page when trying to add/update podcasts
- Ensure that the backend can properly add new podcasts
- Ensure that the backend can properly update existing podcasts

Ideal Skills:
- Expertise in Smarty PHP
- Experience in troubleshooting and fixing backend issues
- Familiarity with podcast posting and updating
- Ability to diagnose and fix session errors

I'm looking for a freelancer who can quickly identify and resolve this issue, so we can continue to regularly update our podcast feed. Thank you.

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Vertizontal Radio.com can not post podcasts on their site. The backend produces a blank page when adding new podcasts. The script will not download episodes to the site.

1. Fix the backend problem with blank page and the front end will not download episodes to the web site. (done)

2. The existing past podcasts will not update automatically / also when pressing the green arrow button on backend podcasts page.