No Thumbnails generated due to security issue

This is what the error log says:

[12-Feb-2024 18:19:44 UTC] ImagickException: attempt to perform an operation not allowed by the security policy `PDF’ @ error/constitute.c/IsCoderAuthorized/422 in /data/web/joh.bsoft.de/wp-content/plugins/pdf-thumbnail-generator/pdf-thumbnail-generator.php:236
Stack trace: 0 /data/web/joh.bsoft.de/wp-content/plugins/pdf-thumbnail-generator/pdf-thumbnail-generator.php(236): Imagick->readImage() 1 /data/web/joh.bsoft.de/wp-content/plugins/pdf-thumbnail-generator/pdf-thumbnail-generator.php(97): pdf_thumbnail_generator->generate_thumbnail() 2 /data/web/joh.bsoft.de/wp-includes/class-wp-hook.php(324): pdf_thumbnail_generator->admin_options_page() 3 /data/web/joh.bsoft.de/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() 4 /data/web/joh.bsoft.de/wp-includes/plugin.php(517): WP_Hook->do_action() 5 /data/web/joh.bsoft.de/wp-admin/admin.php(259): do_action() 6 /data/web/joh.bsoft.de/wp-admin/options-general.php(10): require_once(‘/data/web/joh.b…’) 7 {main}

I did not define any special security policy, do you have any clue for me?

Tx Hanno

 

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