Error after installing extension on CiviCRM 5.31.1
I installed and enabled this extension on CiviCRM 5.31.1 on Wordpress. But when I add a new individual I have this error:
#0 \web\app\plugins\civicrm\civicrm\CRM\Core\Error.php(148): CRM_Core_Error::backtrace()
#1 \web\app\plugins\civicrm\civicrm\vendor\pear\pear-core-minimal\src\PEAR.php(922): CRM_Core_Error::handle(Object(HTML_QuickForm_Error))
#2 \web\app\plugins\civicrm\civicrm\packages\HTML\QuickForm.php(2107): PEAR_Error->__construct("nonexistent html element", -3, 16, (Array:2), "Nonexistant element(s): 'custom_3_-1' in HTML_QuickForm::freeze()")
#3 \web\app\plugins\civicrm\civicrm\vendor\pear\pear-core-minimal\src\PEAR.php(575): HTML_QuickForm_Error->__construct(-3, 16, (Array:2), "Nonexistant element(s): 'custom_3_-1' in HTML_QuickForm::freeze()")
#4 \web\app\plugins\civicrm\civicrm\vendor\pear\pear-core-minimal\src\PEAR.php(236): PEAR::_raiseError(NULL, NULL, -3, 16, (Array:2), "Nonexistant element(s): 'custom_3_-1' in HTML_QuickForm::freeze()", "HTML_QuickForm_Error", TRUE)
#5 \web\app\plugins\civicrm\civicrm\packages\HTML\QuickForm.php(1651): PEAR::__callStatic("raiseError", (Array:7))
#6 \web\app\plugins\civicrm\civicrm\CRM\Core\BAO\CustomField.php(947): HTML_QuickForm->freeze((Array:1))
#7 \web\app\plugins\civicrm\civicrm\CRM\Core\BAO\CustomGroup.php(1524): CRM_Core_BAO_CustomField::addQuickFormElement(Object(CRM_Contact_Form_Contact), "custom_3_-1", "3", "0")
#8 \web\app\plugins\civicrm\civicrm\CRM\Custom\Form\CustomData.php(170): CRM_Core_BAO_CustomGroup::buildQuickForm(Object(CRM_Contact_Form_Contact), (Array:1))
#9 \web\app\plugins\civicrm\civicrm\CRM\Contact\Form\Edit\CustomData.php(63): CRM_Custom_Form_CustomData::buildQuickForm(Object(CRM_Contact_Form_Contact))
#10 \web\app\plugins\civicrm\civicrm\CRM\Contact\Form\Contact.php(796): CRM_Contact_Form_Edit_CustomData::buildQuickForm(Object(CRM_Contact_Form_Contact))
#11 \web\app\plugins\civicrm\civicrm\CRM\Core\Form.php(630): CRM_Contact_Form_Contact->buildQuickForm()
#12 \web\app\plugins\civicrm\civicrm\CRM\Core\QuickForm\Action\Display.php(76): CRM_Core_Form->buildForm()
#13 \web\app\plugins\civicrm\civicrm\packages\HTML\QuickForm\Controller.php(203): CRM_Core_QuickForm_Action_Display->perform(Object(CRM_Contact_Form_Contact), "display")
#14 \web\app\plugins\civicrm\civicrm\packages\HTML\QuickForm\Page.php(103): HTML_QuickForm_Controller->handle(Object(CRM_Contact_Form_Contact), "display")
#15 \web\app\plugins\civicrm\civicrm\CRM\Core\Controller.php(347): HTML_QuickForm_Page->handle("display")
#16 \web\app\plugins\civicrm\civicrm\CRM\Utils\Wrapper.php(98): CRM_Core_Controller->run()
#17 \web\app\plugins\civicrm\civicrm\CRM\Core\Invoke.php(285): CRM_Utils_Wrapper->run("CRM_Contact_Form_Contact", "Nuovo Contatto", (Array:1))
#18 \web\app\plugins\civicrm\civicrm\CRM\Core\Invoke.php(68): CRM_Core_Invoke::runItem((Array:13))
#19 \web\app\plugins\civicrm\civicrm\CRM\Core\Invoke.php(36): CRM_Core_Invoke::_invoke((Array:3))
#20 \web\app\plugins\civicrm\civicrm.php(1644): CRM_Core_Invoke::invoke((Array:3))
#21 \web\wp\wp-includes\class-wp-hook.php(287): CiviCRM_For_WordPress->invoke("")
#22 \web\wp\wp-includes\class-wp-hook.php(311): WP_Hook->apply_filters("", (Array:1))
#23 \web\wp\wp-includes\plugin.php(478): WP_Hook->do_action((Array:1))
#24 \web\wp\wp-admin\admin.php(259): do_action("toplevel_page_CiviCRM")