Docman to EDocman migrator component

helpme, I bought the edocman component, and I want to migrate from docman to edocman,
and I get this error.

Joomla!
500 - error

JDatabase::getInstance: Could not connect to database
joomla.library:0 -

any ideas
i have joomla 2.5

Hi Daliana

That means the database information you entered in Configuration for the migrator component is not correct. Maybe you can send us administrator and FTP account of your site so that we can migrate the data for you ?

Tuan

Dear Administrator,

I am using Joomla 3.1.5. When I tried with the same component, I have found this error on Configuration page.
Fatal error: Call to undefined method JController::getInstance() in /home/website/public_html/new/administrator/components/com_docman2edocman/docman2edocman.php on line 19

Hi Mubashar

I am sorry. The migrator was written for old version of Joomla. Please submit a support ticket so that we can help you to migrate the data !

Tuan