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I just set up a fresh prestashop 1.7.0.4 and was enabling blocks and design related entities, when suddenly the entire BackOffice went blank. I'm now unable to get back into it. I can (sometimes) get the login page, but given valid credentials i just get a blank page. I got the error below from having enabled debug. I tried setting PS_SMARTY_CACHE to 0 in mysql, but that didn't change anything. Any suggestions? Whoops, looks like something went wrong. 1/1 SmartyException in smarty_resource.php line 467: Unknown resource type 'module' in smarty_resource.php line 467 at Smarty_Resource::load(object(Smarty), 'module') in smarty_resource.php line 544 at Smarty_Resource::source(object(Smarty_Internal_Template)) in smarty_internal_template.php line 680 at Smarty_Internal_Template->__get('source') in smarty_internal_templatebase.php line 119 at Smarty_Internal_TemplateBase->fetch() in Module.php line 2255 at ModuleCore->fetch('module:ps_mainmenu/ps_mainmenu.tpl') in ps_mainmenu.php line 1426 at Ps_MainMenu->renderWidget('displayAdminAfterHeader', array('smarty' => object(Smarty_Internal_Template), 'cookie' => object(Cookie), 'cart' => null, 'altern' => '1')) in Hook.php line 763 at HookCore::coreRenderWidget(object(Ps_MainMenu), 'displayAdminAfterHeader', array('smarty' => object(Smarty_Internal_Template), 'cookie' => object(Cookie), 'cart' => null, 'altern' => '1')) in Hook.php line 737 at HookCore::exec('displayAdminAfterHeader', array('smarty' => object(Smarty_Internal_Template)), null) in smarty.config.inc.php line 174 at smartyHook(array('h' => 'displayAdminAfterHeader'), object(Smarty_Internal_Template)) at call_user_func_array('smartyHook', array(array('h' => 'displayAdminAfterHeader'), object(Smarty_Internal_Template))) in SmartyLazyRegister.php line 83 at SmartyLazyRegister->__call('smartyHook', array(array('h' => 'displayAdminAfterHeader'), object(Smarty_Internal_Template))) in smarty_internal_templatebase.php(157) : eval()'d code line 546 at SmartyLazyRegister->smartyHook(array('h' => 'displayAdminAfterHeader'), object(Smarty_Internal_Template)) in smarty_internal_templatebase.php(157) : eval()'d code line 546 at content_587e6596e679f3_40948971(object(Smarty_Internal_Template)) in smarty_internal_templatebase.php line 188 at Smarty_Internal_TemplateBase->fetch('header.tpl') in AdminController.php line 1787 at AdminControllerCore->display() in Controller.php line 221 at ControllerCore->run() in Dispatcher.php line 366 at DispatcherCore->dispatch() in index.php line 95