Feed Error since the last episode

Podlove Publisher
1

Hi,
we don’t no why, but our feed cannot be read by itunes oder sportify. Some podcast apps also cannot read the feed. The feed was working until our second last episode.

Our feed is: https://www.justbaseball.de/feed/mp3/

Error

This page contains the following errors:
error on line 510 at column 1: Extra content at the end of the document

I don’t know how to fix that, tried the tools in the podlove customizing.

Our Website:

Website https://www.justbaseball.de
PHP Version 8.4.16-nmm1
WordPress Version 6.9.1
WordPress Theme Mesmerize PRO v1.6.152
Active Plugins

  • Akismet Anti-spam: Spam Protection v5.6
  • BackUpWordPress v3.14
  • Contact Form 7 v9.1.5
  • Cookie Notice & Compliance for GDPR / CCPA v2.5.13
  • Disable Gutenberg v3.3
  • YouTube Advanced Embed v5.5
  • Mesmerize Companion v1.6.168
  • Podlove Podcast Publisher v4.3.4
  • Podlove Web Player v5.9.2
    WordPress Database Charset utf8
    WordPress Database Collate
    Publisher Version 4.3.4
    Publisher Database Version 163
    Web Player Version player_v5
    open_basedir ok
    curl Version 8.5.0
    iconv available
    simplexml ok
    max_execution_time 0
    upload_max_filesize 384M
    memory_limit 384M
    disable_classes
    disable_functions
    permalinks ok (/%postname%/)
    podlove_permalinks ok
    podcast_settings ok
    web_player ok
    podlove_cache on
    assets

0 errors
1 HINWEIS (no dealbreaker, but should be fixed if possible):

  • Episode Database Charset is not UTF-8! (is latin1_swedish_ci)