[horde] Turba 5 / Horde 6 | LDAP Search | Non-static method Horde_Form::getType() cannot be called statically

[Samuel Wolf]

Hello,

I try to add a LDAP address book in turba 5 via backends.local.php.
As soon I enable columns of this address book I get this error after search:

A fatal error has occurred
Non-static method Horde_Form::getType() cannot be called statically
in /var/www/horde-deployment/vendor/horde/turba/templates/browse/row.inc:75

1. Turba_View_List->display()  
/var/www/horde-deployment/vendor/horde/turba/search.php:297
2. Turba_View_List->getPage()  
/var/www/horde-deployment/vendor/horde/turba/lib/View/List.php:194
3. Turba_View_List->_get()  
/var/www/horde-deployment/vendor/horde/turba/lib/View/List.php:278
4. include()  
/var/www/horde-deployment/vendor/horde/turba/lib/View/List.php:442

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.

Error Object
(
     [message:protected] => Non-static method Horde_Form::getType()  
cannot be called statically
     [string:Error:private] => Error: Non-static method  
Horde_Form::getType() cannot be called statically in  
/var/www/horde-deployment/vendor/horde/turba/templates/browse/row.inc:75
Stack trace:
#0  
/var/www/horde-deployment/vendor/horde/turba/lib/View/List.php(442):  
include()
#1  
/var/www/horde-deployment/vendor/horde/turba/lib/View/List.php(278):  
Turba_View_List->_get()
#2  
/var/www/horde-deployment/vendor/horde/turba/lib/View/List.php(194):  
Turba_View_List->getPage()
#3 /var/www/horde-deployment/vendor/horde/turba/search.php(297):  
Turba_View_List->display()
#4 {main}
[...]

Is there a package (horde_form) missing?

composer require horde/form ^3
[...]
Nothing to install, update or remove

Samuel