My work experience was not found

It is required to have a "work experience" or "projects" section on your CV. You will find some CV templates via the dashboard. 

Naming these sections in an unconventional way can cause CareerSet to not detect them, similarly to Applicant Tracking Systems. The safest option is naming the section simply "Work Experience". Please also double-check you have spelt it correctly, and that your CV is in text form and not a picture or scanned document.