Fatal error with adding or editing a new listing

I’m adding the 1st listing with this plugin, this is the errors I’m seeing. Anyone helps me? Thanks a lot.

Fatal error: Uncaught Error: Call to undefined function ct_currency() in C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2_Types.php:545 Stack trace: #0 C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2_Types.php(101): CMB2_Types->text_money() #1 C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2_Types.php(90): CMB2_Types->_render() #2 C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2_Field.php(907): CMB2_Types->render() #3 C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2-tabs\cmb2-tabs.php(310): CMB2_Field->render_field_callback() #4 C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2_Base.php(315): CMB2_Tabs::tabs_render_row_cb(Array, Object(CMB2_Field), NULL) #5 C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2_Base.php(273): CMB2_Base->do_callback(Array) #6 C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2_Base.php(249): CMB2_Base->get_param_callback_result(‘render_row_cb’) #7 C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2_Field.php(863): CMB2_Base->peform_param_callback(‘render_row_cb’) #8 C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2.php(449): CMB2_Field->render_field() #9 C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2.php(251): CMB2->render_field(Array) #10 C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2_hookup.php(605): CMB2->show_form(9, ‘post’) #11 C:\localhost\wp-admin\includes\template.php(1345): CMB2_hookup->metabox_callback(Object(WP_Post), Array) #12 C:\localhost\wp-admin\edit-form-advanced.php(677): do_meta_boxes(Object(WP_Screen), ‘normal’, Object(WP_Post)) #13 C:\localhost\wp-admin\post.php(206): require(‘C:\\Users\\Binh\\D…’) #14 {main} thrown in C:\localhost\wp-content\plugins\contempo-real-estate-custom-posts\cmb2\includes\CMB2_Types.php on line 545
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PHP 7.3
WP 5.4.2
theme: Twenty Twenty
contempo plugin v2.7.0 released 3 days ago (today 6/20/2020)

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