CSV Import: Fatal error due to the Clean Url module

Hi, I recently got this error in the log file while trying to update my items:

Fatal error: Uncaught Error: Call to a member function getParam() on null in /home/[...]/application/src/Api/Representation/ItemRepresentation.php:109

The line #109 is the one containing getParam('site-slug') in the following code:

public function siteUrl($siteSlug = null, $canonical = false)
{
    if (!$siteSlug) {
        $siteSlug = $this->getServiceLocator()->get('Application')
            ->getMvcEvent()->getRouteMatch()->getParam('site-slug');
    }
...

I managed to solve the problem by deactivating the module named “Clean Url”.
My setup: Omeka-S 4.1.1 / CSV Import 2.6.2 / Clean Url 3.17.10