Hello Joomla Experts.
Yeasterday i had updated joomla to the last version, unfortenattly an issues started apper in the website, it shows an error in the main page
0
Class 'FOFModel' not found
![]https://www.randschools.com/international-section/
Template : is Edue_con
Joomla version: latest
This messages showed in joomla> componnents.
An error has occurred.
0 Call to undefined method
Joomla\CMS\Application\AdministratorApplication::isAdmin()
Call stack
Function Location
1 () JROOT/administrator/components/com_acymailing/compat/joomla.php:324
2 acymailing_isAdmin() JROOT/administrator/components/com_acymailing/helpers/helper.php:46
3 acymailing_navigationTabs() JROOT/administrator/components/com_acymailing/helpers/toolbar.php:79
4 acytoolbarHelper->display() JROOT/administrator/components/com_acymailing/views/template/view.html.php:108
5 TemplateViewTemplate->listing() JROOT/administrator/components/com_acymailing/views/template/view.html.php:24
6 TemplateViewTemplate->display() JROOT/libraries/src/MVC/Controller/BaseController.php:639
7 Joomla\CMS\MVC\Controller\BaseController->display() JROOT/administrator/components/com_acymailing/helpers/helper.php:1314
8 acymailingController->listing() JROOT/libraries/src/MVC/Controller/BaseController.php:672
9 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/administrator/components/com_acymailing/acymailing.php:97
10 require_once() JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:71
11 Joomla\CMS\Dispatcher\LegacyComponentDispatcher::Joomla\CMS\Dispatcher{closure}() JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:73
12 Joomla\CMS\Dispatcher\LegacyComponentDispatcher->dispatch() JROOT/libraries/src/Component/ComponentHelper.php:355
13 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/AdministratorApplication.php:143
14 Joomla\CMS\Application\AdministratorApplication->dispatch() JROOT/libraries/src/Application/AdministratorApplication.php:186
15 Joomla\CMS\Application\AdministratorApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:294
16 Joomla\CMS\Application\CMSApplication->execute() JROOT/administrator/includes/app.php:61
17 require_once() JROOT/administrator/index.php:32
please heros provide me with solutions, not sure from where i have to start and which elements i have fix. i would appreciate it to see a videos or pictures that
help
would like to make it compateble with last version of joomla.
I allready have a backup of the website before updating joomla but i might leave is as a last solution