Undefined object property

-- url of the page with the problem -- : ulmer-paddler.de
-- HikaShop version -- : 6.2.0
-- Joomla version -- : 5.4.2
-- PHP version -- : 8.3.25
-- Browser(s) name and version -- : Firefox/147.0
-- Error-message(debug-mod must be tuned on) -- : Warning: Undefined property: stdClass::$extension_id in /var/www/vhosts/w877mfup.web151.alfahosting-server.de/ulmer-paddler.de/plugins/editors-xtd/hikashopproduct/hikashopproduct.php on line 58

Dear developers,

Since updating to 6.2.0, the error message posted above appears when editing a normal article in Joomla. This occurs in both the backend and frontend.

Greetings
Michael