documents not generated properly (DOMPDF error)

[BenRoe]

PHP Version

8.2.22

Shopware Version

6.6.5.1

Plugin Version

1.0.3

Actual behaviour

Documents are not generated properly.

dev.log

Warning: DOMXPath::query(): Invalid expression {"exception":
{"Symfony||Component||ErrorHandler||Exception||SilencedErrorContext:
{"severity":2,"file":"/var/www/vhosts/keycapsss.com/sw6/vendor/dompdf/dompdf/src/Css/Stylesheet.php","line
"975, "trace":
["file":"/var/www/hosts/keycapsss.com/sw6/vendor/dompdf/dompdf/src/Dompdf.php","line":695,"function":"a
pply_styles""class":"Dompdf||Css||Stylesheet", "type":"→"}],"count": 1}}} []

Expected behaviour

The document like invoice should look like the standard SW6 document.

Steps to Reproduce?

Install and activate the plugin and generate a invoice preview und orders.