Fatal error: Uncaught Error: Class "ObjectModel" not found in /usr/home/CLT/domains/dev.biou.pl/public_html/modules/dh42productnotes/classes/productnotes.php:29
Stack trace:
#0 {main}
  thrown in /usr/home/CLT/domains/dev.biou.pl/public_html/modules/dh42productnotes/classes/productnotes.php on line 29