SEO & Resource Manager Categories Error

ErrorException: [E_WARNING] Declaration of xenMade\SEO\XFRM\Admin\Controller\Category::categorySaveProcess(XF\Entity\AbstractCategoryTree $category) should be compatible with XFA\RMMarketplace\XFRM\Admin\Controller\Category::categorySaveProcess(XFRM\Entity\Category $category) in src/addons/xenMade/SEO/XFRM/Admin/Controller/Category.php at line 23
XF::handlePhpError() in src/vendor/composer/ClassLoader.php at line 444
include() in src/vendor/composer/ClassLoader.php at line 444
Composer\Autoload\includeFile() in src/vendor/composer/ClassLoader.php at line 322
Composer\Autoload\ClassLoader->loadClass()
spl_autoload_call()
class_exists() in src/XF/Extension.php at line 172
XF\Extension->extendClass() in src/XF/App.php at line 2668
XF\App->extendClass() in src/XF/App.php at line 1472
XF\App->XF\{closure}() in src/XF/Container.php at line 228
XF\Container->create() in src/XF/App.php at line 2623
XF\App->controller() in src/XF/Mvc/Dispatcher.php at line 289
XF\Mvc\Dispatcher->dispatchClass() in src/XF/Mvc/Dispatcher.php at line 261
XF\Mvc\Dispatcher->dispatchFromMatch() in src/XF/Mvc/Dispatcher.php at line 113
XF\Mvc\Dispatcher->dispatchLoop() in src/XF/Mvc/Dispatcher.php at line 55
XF\Mvc\Dispatcher->run() in src/XF/App.php at line 2184
XF\App->run() in src/XF.php at line 391
XF::runApp() in admin.php at line 13