[Plugin: Joomla/Mambo to WordPress Migrator] Cannot create menus after migration

Joomla to wordpress migrator plugin ver. 1.4.2

I’m unable to create wordpress menus after migrating joomla content via plugin. The following errors appear when attempting to create a menu:

Warning: Invalid argument supplied for foreach() in C:\xampp\htdocs\…\wp-admin\includes\menu.php on line 18

Warning: Invalid argument supplied for foreach() in C:\xampp\htdocs\…\wp-admin\includes\menu.php on line 67

Fatal error: [] operator not supported for strings in C:\xampp\htdocs\…\wp-admin\includes\plugin.php on line 889