Themes not showing in dropdown settings v1.5.11

no results found is the error on the dropdown box - so it does not want to show me invoiceplane_blue
Settings > General > Theme
How can i fix this?
[Apache 2.4.37 Windows10 PHP 7.2.14

A PHP Error was encountered Severity: Warning

Message: Invalid argument supplied for foreach()
Filename: models/Mdl_settings.php
Line Number: 123
File: C:\wamp64\www\v1.5.11\application\modules\settings\models\Mdl_settings.php
Line: 123
Function: _error_handler
File: C:\wamp64\www\v1.5.11\application\modules\settings\controllers\Settings.php
Line: 144
Function: get_themes
File: C:\wamp64\www\v1.5.11\index.php
Line: 325
Function: require_once