first attempt to migration toward j 4 following the fc v 4 version

Hi,
migration from an existing site first attemp.
after a lot a problem  i could access to the admin :
many troubles but the two first concerning  :

1/ i can't edit the item from the backend i have thisUne erreur s'est produite

500 behavior::framework not found.

Call stack#FunctionLocation1()JROOT/libraries/src/HTML/HTMLHelper.php:1492Joomla\CMS\HTML\HTMLHelper::_()JROOT/plugins/flexicontent_fields/image/image.php:1923plgFlexicontent_fieldsImage->onDisplayField()JROOT/components/com_flexicontent/classes/helpers/flexiutilities.php:4284FLEXIUtilities::call_FC_Field_Func()JROOT/components/com_flexicontent/classes/flexicontent.fields.php:5405FlexicontentFields::getFieldFormDisplay()JROOT/administrator/components/com_flexicontent/views/item/view.html.php:6896FlexicontentViewItem->_displayForm()JROOT/administrator/components/com_flexicontent/views/item/view.html.php:497FlexicontentViewItem->display()JROOT/administrator/components/com_flexicontent/controllers/items.php:14348FlexicontentControllerItems->edit()JROOT/libraries/src/MVC/Controller/BaseController.php:7309Joomla\CMS\MVC\Controller\BaseController->execute()JROOT/administrator/components/com_flexicontent/admin.flexicontent.php:36010require_once()JROOT/administrator/components/com_flexicontent/flexicontent.php:2211require_once()JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:6912Joomla\CMS\Dispatcher\LegacyComponentDispatcher::Joomla\CMS\Dispatcher\{closure}()JROOT/libraries/src/Dispatcher/LegacyComponentDispatcher.php:7113Joomla\CMS\Dispatcher\LegacyComponentDispatcher->dispatch()JROOT/libraries/src/Component/ComponentHelper.php:38914Joomla\CMS\Component\ComponentHelper::renderComponent()JROOT/libraries/src/Application/AdministratorApplication.php:14315Joomla\CMS\Application\AdministratorApplication->dispatch()JROOT/libraries/src/Application/AdministratorApplication.php:18616Joomla\CMS\Application\AdministratorApplication->doExecute()JROOT/libraries/src/Application/CMSApplication.php:27817Joomla\CMS\Application\CMSApplication->execute()JROOT/administrator/includes/app.php:6318require_once()JROOT/administrator/index.php:32
2/ in the front end : if i am connecting with my user /password i can click on a link but nothing append; i i am not connected i can use the links ...

Hello

none of the lines match
it seems like if none of the files have not been update to the files of FC v4

maybe you find a little bug in image field in joomla mode
1 can you test to disable your field to be sure ?
2 can you post your field config
regards

what fields are you talking about ? i have this issue when i try to edit an item ..
and it is a site that works with J3 i chose a very small site ..
and to be sure of what ?

see this line in your error
/plugins/flexicontent_fields/image/image.php:1923
=> can you check your image field and do my test bellow ?

test i have inactivate the field nothing more same effectconfig