Fails to load

Hi there

Tried installing to plugin on a site in development, but got these errors:

Warning: include_once(fields/class-acf-field-customizer-section-v.php): failed to open stream: No such file or directory in /nas/content/staging/XXX/wp-content/plugins/acf-customizer/includes/fields/acf-customizer-section/acf-customizer-section.php on line 71

Warning: include_once(): Failed opening ‘fields/class-acf-field-customizer-section-v.php’ for inclusion (include_path=’.:/usr/share/pear/php:/usr/share/php:/usr/share/pear’) in /nas/content/staging/XXX/wp-content/plugins/acf-customizer/includes/fields/acf-customizer-section/acf-customizer-section.php on line 71

Warning: include_once(fields/class-acf-field-customizer-panel-v.php): failed to open stream: No such file or directory in /nas/content/staging/XXX/wp-content/plugins/acf-customizer/includes/fields/acf-customizer-panel/acf-customizer-panel.php on line 71

Warning: include_once(): Failed opening ‘fields/class-acf-field-customizer-panel-v.php’ for inclusion (include_path=’.:/usr/share/pear/php:/usr/share/php:/usr/share/pear’) in /nas/content/staging/XXX/wp-content/plugins/acf-customizer/includes/fields/acf-customizer-panel/acf-customizer-panel.php on line 71

Fatal error: Call to undefined function acf_get_field_groups() in /nas/content/staging/XXX/wp-content/plugins/acf-customizer/includes/class-acf-customizer-render.php on line 199