I have contacted my server and they say it's not in their side.

Do you know why this is happening please?

 

A configuration or server error has occurred

EX0 Something went wrong. Please try again.

OutOfRangeException:  (0)
#0 /home/psychforum/public_html/init.php(903) : eval()'d code(69): IPS\Patterns\_ActiveRecord::load(NULL)
#1 /home/psychforum/public_html/system/Node/Controller.php(495): IPS\ipskitaddons_hook_IPS_Theme->form(Object(IPS\Helpers\Form))
#2 /home/psychforum/public_html/system/Node/Controller.php(394): IPS\Node\_Controller->_addEditForm(Object(IPS\Theme))
#3 /home/psychforum/public_html/system/Dispatcher/Controller.php(90): IPS\Node\_Controller->form()
#4 /home/psychforum/public_html/system/Node/Controller.php(69): IPS\Dispatcher\_Controller->execute()
#5 /home/psychforum/public_html/applications/core/modules/admin/customization/themes.php(59): IPS\Node\_Controller->execute()
#6 /home/psychforum/public_html/system/Dispatcher/Dispatcher.php(153): IPS\core\modules\admin\customization\_themes->execute()
#7 /home/psychforum/public_html/admin/index.php(13): IPS\_Dispatcher->run()
#8 {main}

Disable the resource ipskit Aaddons and tey again.

 

Disable the resource ipskit Aaddons and tey again.

Thank you that did the trick.