Hello!

What version of Joomla are you using?
On what page does this error appear?

Hi: I'm on Jooma 3.9.10, RSSFactory Pro version 4.2.9

The errors occur in the main backend component when I try to edit an existing feed or add a new one. I've checked permissions but have not reloaded the component (I don't have a copy with me on the road and I can no longer download the version).

administrator/index.php?option=com_rssfactory

Here is the debug info.
500 Joomla\CMS\Form\Form::getInstance() could not load file
/home/username/public_html/administrator/components/com_rssfactory/views/view.php:78

Call stack
# Function Location
1 () JROOT/administrator/components/com_rssfactory/views/view.php:78
2 FactoryView->display() JROOT/administrator/components/com_rssfactory/views/feed/view.html.php:42
3 RssFactoryBackendViewFeed->display() JROOT/libraries/src/MVC/Controller/BaseController.php:672
4 Joomla\CMS\MVC\Controller\BaseController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:710
5 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/administrator/components/com_rssfactory/rssfactory.php:26
6 require_once() JROOT/libraries/src/Component/ComponentHelper.php:402
7 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:377
8 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/AdministratorApplication.php:101
9 Joomla\CMS\Application\AdministratorApplication->dispatch() JROOT/libraries/src/Application/AdministratorApplication.php:159
10 Joomla\CMS\Application\AdministratorApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:196
11 Joomla\CMS\Application\CMSApplication->execute() JROOT/administrator/index.php:51