[BUG] Deletion of entries per Backend Module

[davidprojekt]

It is not possible to delete the submitted form entries via the backend module, as it always ends up with an error.
The Feature Request this is related to: #34

This only affects Version 3 as far as I know.
Since Version 4 is for TYPO3 11 I would appreciate the bug also being fixed in Version 3, so its possible to use this Extension in TYPO3 10.

The Error was already descripted there:

Call to a member function getDocHeaderComponent() on null

in /var/www/html/public/typo3conf/ext/frp_form_answers/Classes/Controller/FormEntryController.php line 131
        parent::initializeView($view);
        $this->iconFactory = GeneralUtility::makeInstance(IconFactory::class);
        
     if ($this->actionMethodName != 'exportAction') {
         $view->getModuleTemplate()->getDocHeaderComponent()->setMetaInformation([]);

         $pageRenderer = $this->view->getModuleTemplate()->getPageRenderer();
         $pageRenderer->addInlineLanguageLabelFile('EXT:lang/Resources/Private/Language/locallang_core.xlf');

To get around this Error it is possible to change the initializeView Function inside the FormEntryController like this:

/**
     * Set up the doc header properly here
     *
     * @param ViewInterface $view
     * @return void
     */
    protected function initializeView(ViewInterface $view)
    {
        /** @var BackendTemplateView $view */
        parent::initializeView($view);
        $this->iconFactory = GeneralUtility::makeInstance(IconFactory::class);
        
	    if ($this->actionMethodName != 'exportAction') {
		    if($view->getModuleTemplate()) {
			    $view->getModuleTemplate()->getDocHeaderComponent()->setMetaInformation([]);

			    $pageRenderer = $this->view->getModuleTemplate()->getPageRenderer();
			    $pageRenderer->addInlineLanguageLabelFile('EXT:lang/Resources/Private/Language/locallang_core.xlf');

			    $this->createMenu();
			    $this->createButtons();
		    }

	        $view->assign('showSupportArea', $this->showSupportArea());
	    }
    }

The difference is this line: if($view->getModuleTemplate())

I am not familiar enough with the Project to know if this is just a workaround or an actual fix.