Error on update with AMM Extensions Actived

When I updated AAM to 2.6 version, I got it:

Fatal error: Call to protected aam_Core_Repository::__construct() from context 'aam_Core_Update' in \wp-content\plugins\advanced-access-manager\application\core\update.php on line 75

So I saw the line 75:

public function downloadRepository() {
        $response = true;
        if ($extensions = aam_Core_API::getBlogOption('aam_extensions')) {
            if (is_array($extensions)){
                $repo = new aam_Core_Repository();
                $repo->download();
            }
        }

        return $response;
    }

And yes, I have AAM extensions.

I have the var_dump in $extensions and I got it:

array (size=2)
  'AAM Plus Package' =>
    object(stdClass)[7157]
      public 'status' => string 'installed' (length=9)
      public 'license' => string '[MY CODE!]' (length=40)
      public 'basedir' => string '/wp-content/plugins/advanced-access-manager/extension/AAM_Plus_Package' (length=82)
  'AAM Activities' =>
    object(stdClass)[7159]
      public 'status' => string 'installed' (length=9)
      public 'license' => string '[MY CODE!]' (length=40)
      public 'basedir' => string '/wp-content/plugins/advanced-access-manager/extension/AAM_Activities' (length=80)

What is the problem?

https://wordpress.org/plugins/advanced-access-manager/