Fix for error: “PHP Fatal error: Uncaught Error: Call to undefined function register_field_group()”
Please edit the ACF PRO plugin file “includes/local-fields.php” and add the following function on line 184 after acf_add_local_field_group().
/**
* register_field_group
*
* See acf_add_local_field_group().
*
* @date 22/1/19
* @since 5.7.10
*
* @param array $field_group The field group array.
* @return void
*/
function register_field_group( $field_group ) {
acf_add_local_field_group( $field_group );
}
Reason for error: The register_field_group() function was accidentally removed. Adding it back will solve the issue.
