Podcaster plugin has issues and errors on live site

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Hi,

I am using the Podcaster plugin on a site and locally (MAMP) all works reasonably well, but on the live site it all goes wrong.

In the template this throws an error: use mauricerenck\Podcaster\Podcast

In the panel the link to view the RSS settings give this error: Invalid query result data: NULL

On an episode page I get this error: Call to a member function url() on null error. It points to this line:

'poster' => $feed->podcasterCover()->toFile()->url(),

And all these in the config file throw the whole site in an error:
mauricerenck.podcaster' => [
'statsInternal' => true,
'statsType' => 'sqlite',
'sqlitePath' => 'content/', ],

Pointing to a line in this file: /httpdocs/_dev/yata/site/plugins/podcaster/lib/Migrations.php

Call to a member function query() on null

$versionResult = $db->query('SELECT version FROM migrations ORDER BY version DESC LIMIT 1');

Any ideas what the problem is?

I am using Kirby 5.0.4 and PHP 8.3.14

Thanks in advance.