[horde] Errors trying to add child permissions

[Ovi Cazacu]

A fatal error has occurred
 
Horde\Util\ArrayUtils::setElement(): Argument #1 ($array) must be of type array, null given, called in /srv/www/horde/vendor/horde/form/lib/Horde/Form.php on line 939
 in /srv/www/horde/vendor/horde/util/src/ArrayUtils.php:1521. require_once() /srv/www/horde/web/horde/admin/perms/addchild.php:3
2. Horde_Core_Perms_Ui->validateAddForm() /srv/www/horde/vendor/horde/horde/admin/perms/addchild.php:45
3. Horde_Form->getInfo() /srv/www/horde/vendor/horde/core/lib/Horde/Core/Perms/Ui.php:248
4. Horde_Form->_getInfoFromVariables() /srv/www/horde/vendor/horde/form/lib/Horde/Form.php:902
5. Horde\Util\ArrayUtils::setElement() /srv/www/horde/vendor/horde/form/lib/Horde/Form.php:939


Details

The full error message is logged in Horde's log file, and is shown below only to administrators. Non-administrative users will not see error details.
 TypeError Object
(
    [message:protected] => Horde\Util\ArrayUtils::setElement(): Argument #1 ($array) must be of type array, null given, called in /srv/www/horde/vendor/horde/form/lib/Horde/Form.php on line 939
    [string:Error:private] => TypeError: Horde\Util\ArrayUtils::setElement(): Argument #1 ($array) must be of type array, null given, called in /srv/www/horde/vendor/horde/form/lib/Horde/Form.php on line 939 and defined in /srv/www/horde/vendor/horde/util/src/ArrayUtils.php:152
Stack trace:
#0 /srv/www/horde/vendor/horde/form/lib/Horde/Form.php(939): Horde\Util\ArrayUtils::setElement()
#1 /srv/www/horde/vendor/horde/form/lib/Horde/Form.php(902): Horde_Form->_getInfoFromVariables()
#2 /srv/www/horde/vendor/horde/core/lib/Horde/Core/Perms/Ui.php(248): Horde_Form->getInfo()
#3 /srv/www/horde/vendor/horde/horde/admin/perms/addchild.php(45): Horde_Core_Perms_Ui->validateAddForm()
#4 /srv/www/horde/web/horde/admin/perms/addchild.php(3): require_once('...')
#5 {main}
    [code:protected] => 0
    [file:protected] => /srv/www/horde/vendor/horde/util/src/ArrayUtils.php
    [line:protected] => 152
    [trace:Error:private] => Array
        (
            [0] => Array
                (
                    [file] => /srv/www/horde/vendor/horde/form/lib/Horde/Form.php
                    [line] => 939
                    [function] => setElement
                    [class] => Horde\Util\ArrayUtils
                    [type] => ::
                )

            [1] => Array
                (
                    [file] => /srv/www/horde/vendor/horde/form/lib/Horde/Form.php
                    [line] => 902
                    [function] => _getInfoFromVariables
                    [class] => Horde_Form
                    [type] => ->
                )

            [2] => Array
                (
                    [file] => /srv/www/horde/vendor/horde/core/lib/Horde/Core/Perms/Ui.php
                    [line] => 248
                    [function] => getInfo
                    [class] => Horde_Form
                    [type] => ->
                )

            [3] => Array
                (
                    [file] => /srv/www/horde/vendor/horde/horde/admin/perms/addchild.php
                    [line] => 45
                    [function] => validateAddForm
                    [class] => Horde_Core_Perms_Ui
                    [type] => ->
                )

            [4] => Array
                (
                    [file] => /srv/www/horde/web/horde/admin/perms/addchild.php
                    [line] => 3
                    [args] => Array
                        (
                            [0] => /srv/www/horde/vendor/horde/horde/admin/perms/addchild.php
                        )

                    [function] => require_once
                )

        )

    [previous:Error:private] => 
)