upgrade – Magento 2.3 to 2.3.6 – help – urgent

I just updated my Magento instalation from 2.3.3 to 2.3.6.

Everything seamed to fine except when I do reindex. I get this error:

PHP Fatal error: Uncaught Error: Cannot instantiate interface MagentoInventoryCatalogApiModelGetProductTypesBySkusInterface in /chroot/home/a96f0e0b/stores.etailhandel.no/html/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php:121
Stack trace:
#0 /chroot/home/a96f0e0b/stores.etailhandel.no/html/vendor/magento/framework/ObjectManager/Factory/Compiled.php(108): MagentoFrameworkObjectManagerFactoryAbstractFactory->createObject(‘MagentoInvento…’, Array)
#1 /chroot/home/a96f0e0b/stores.etailhandel.no/html/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): MagentoFrameworkObjectManagerFactoryCompiled->create(‘MagentoInvento…’)
#2 /chroot/home/a96f0e0b/stores.etailhandel.no/html/vendor/magento/framework/ObjectManager/Factory/Compiled.php(79): MagentoFrameworkObjectManagerFactoryCompiled->get(‘MagentoInvento…’)
#3 /chroot/home/a96f0e0b/stores.etailhandel.no/html/vendor/magento/framework/ObjectManager/Factory/Compiled.php(150): MagentoFrameworkObjectManagerFactoryCompiled-> in /chroot/home/a96f0e0b/stores.etailhandel.no/html/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php on line 121

Do anyone know what this means? And can anyone help me please.