Error editing content after migration

Hi All,

I’m in the middle of migrating a 2.9 installation from a managed host to a VPS (digital ocean Ubuntu 14.04 Lamp image).

There were plenty of challenges getting the site to work mostly right, but I have it basically there except from one small issue.

When I go to the content editor in the back end and click the title of an item to edit it gives me this error: Fatal error: Call to undefined method Freeform_acc::get_cp_url_base() in /var/www/system/expressionengine/third_party/freeform/addon_builder/module_builder.php on line 54

Any ideas? I’m pretty sure this error is keeping some content from actually displaying as well.

Thanks for any pointers you can give.