weird output after submitting form

WordPress 4.6.1 running Catch Flames theme.

After form submit we see:

Array ( [qsm] => Thank you! We will get back to you shortly. [qfm] => Something went wrong. Please contact us directly at [email protected]. Thank you! [auto_res] => undefined [email_carrier] => undefined [admin_email] => undefined [res_sub] => undefined [res_msg] => undefined [sm_name] => undefined [sm_email] => undefined [sm_Password] => undefined [sm_port] => undefined [smtp_encryption] => undefined [title_field] => Contact us please! [title_color] => #333333 [description_field] => We need your feedback to make this site a better place.... [lebal_icon_color] => black [name_field] => name [email_field] => email [subject_field] => subject [message_field] => message [name_error_field] => Name cannot be blank. [email_error_field] => Email cannot be blank. [email_error_field_2] => Email is invalid. [subject_error_field] => Subject cannot be blank. [message_error_field] => Message cannot be blank. [sb_button_color] => btn-info [sb_button_text] => submit [ph_text_color] => skyblue [bg_color] => #FFFFFF [show_query] => 25 [cus_css] => .cwf-desc { display: none; } ) Thank you! We will get back to you shortly.

I am pretty sure this was working fine before. The page just has this: ‘[CFW]’