gallery2_import fails : Kohana_Exception [ kohana/core.errors.403 ]: @todo FORBIDDEN

[JanaUramova]

I have an old gallery2 installation (version 2.3.2), but becasue of upgrade of php on my web server, I have setup galley3. I followed official istallation of gallery3. Everything seems to be running properly. I can login as admin and install the gallery2_import module.

However, when I start the import using /gallery2/embed.php I receive the following error:

Platform information
Host name: php84
Operating system: Linux 5.15.0-78-generic
Apache: Apache
PHP: 8.4.1
MySQL: 5.7.39-42-log
Server load: 9.73291015625 10.3657226562 10.6962890625
Graphics toolkit: imagemagick

Gallery stats
Version: 3.0+ (branch master, build 434)
Albums: 0
Photos: 0

Error is here:

Kohana_Exception [ kohana/core.errors.403 ]:
@todo FORBIDDEN
MODPATH/gallery/helpers/access.php[ 202 ]

197
198 /**
199 * Terminate immediately with an HTTP 403 Forbidden response.
200 /
201 static function forbidden() {
202 throw new Kohana_Exception("@todo FORBIDDEN", null, 403);
203 }
204
205 /*
206 * Internal method to set a permission
207 *
MODPATH/gallery/helpers/access.php[ 425 ] » access_Core::forbidden()

MODPATH/gallery/libraries/MY_Forge.php[ 42 ] » access_Core::verify_csrf()

MODPATH/forge/libraries/Forge.php[ 164 ] » Forge->validate()

MODPATH/gallery/libraries/MY_Forge.php[ 41 ] » Forge_Core->validate()

MODPATH/g2_import/controllers/admin_g2_import.php[ 80 ] » Forge->validate()

MODPATH/gallery/controllers/admin.php[ 62 ] » Admin_g2_import_Controller->save()

{PHP internal call} » Admin_Controller->__call( arguments )

SYSPATH/core/Kohana.php[ 302 ] » ReflectionMethod->invokeArgs( arguments )

SYSPATH/core/Event.php[ 208 ] » Kohana_Core::instance( arguments )

APPPATH/Bootstrap.php[ 67 ] » Event_Core::run( arguments )

DOCROOT/index.php[ 124 ] » require( arguments )