apply form doesn’t show confirmation message

Everything works, attachments works, email works to be notified. The only element missing is the “Thank you for sending your resume” on the confirmation message when hitting sending your resume on the apply form. it is the standard “apply form” filled out under “options” EN Message “Thank you for submitting your resume.”. When they send, it is a Blank white box. people are sending it multiple times because they think it didn’t work.