export error

hello we are getting this error when we try and export subscribers

An error has occurred.
0 Too few arguments to function OSController::__construct(), 0 passed in /home2/astdbois/public_html/administrator/components/com_osmembership/osmembership.php on line 40 and exactly 1 expected

verion 1.6.9

Hello

You are using a very outdated version of the extension and it's not compatible with latest version of Joomla

Just update your site to latest version of Membership Pro. After that, the error will be gone

Tuan