When I want to add a new user and click: "New user" I get the error: "An error has occurred. 0 Call to undefined method Joomla\CMS\Application\AdministratorApplication::isAdmin()"

Hi

Thanks for contacting us. After installation refresh the browser then open the template. It should work. In the meanwhile please check this documentation below:

https://www.joomshaper.com/documentation/joomla-templates/kidzy/how-to-install-quickstart

And also check the technical requirements

https://www.joomshaper.com/documentation/joomla-templates/kidzy/technical-requirements

-Regards.

How-to and technical requirements refers to Joomla 3. Post refers to Jomla 4

Hello.

I have set all the necessary technical requirements and the mobile menu is not working properly. Joomla 3: http://przedszkole.h2g.pl/ and Joomla 4: http://domowe.h2g.pl/ Also, for Joomla 4 when creating a new user, I get the error: "Call to undefined method Joomla\CMS\Application\AdministratorApplication::isAdmin()"

Regards

Why doesn't the menu work on mobile devices?

If I may....

I get the error: "Call to undefined method Joomla\CMS\Application\AdministratorApplication::isAdmin()"

I know that Joomla 4 error and I know how to fix it. It's very popular on forum.joomla.org also youtube: https://youtu.be/ZO9nmdsLlFw I need access to admin area.

About not working Mobile Menu - Kidzy template

Use that custom CSS to fix it:

@media screen and (max-width: 760px) {    
.hidden-sm, .hidden-xs {display: none !important; visibility: hidden;}
} 
 .offcanvas {visibility: visible;}      
 .offcanvas-menu .offcanvas-inner .sp-module .sp-module-content > ul {   margin: 0 5px; display: block;}   
 #sp-menu > .sp-column .sp-module { margin-top: 0;}

yes, in Template Options > Custom Code > Custom CSS

Deprecated : Creation of dynamic property cpanelClass::$cmsUserVars is deprecated in /home/przedszkole/domains/domowe.h2g.pl/public_html/administrator/components/com_acymailing/helpers/helper.php on line 1383

Deprecated : Creation of dynamic property cpanelClass::$values is deprecated in /home/przedszkole/domains/domowe.h2g.pl/public_html/administrator/components/com_acymailing/classes/cpanel.php on line 17

Deprecated : Creation of dynamic property plgSystemRegacymailing::$components is deprecated in /home/przedszkole/domains/domowe.h2g.pl/public_html/plugins/system/regacymailing/regacymailing.php on line 154

All is clear now.

Uninstall old version of Acymailing component, with all related plugins.

And if you want to use newsletter, install version for Joomla 4 it should be v8.4.x+

Don't forget to mark topic as solved.

1. Update SP Simple Portfolio component. Then if that process will not help, RENAME "items" folder: templates\shaper_kidzy\html\com_spsimpleportfolio\items
2. Disable Multilanguage plugins, I guess you need only PL, and other languages only make confusion