What should I do if I encounter an error while submitting the COE for my vaccine certificate?

A user is experiencing difficulties submitting their Certificate of Entry (COE) for a vaccine certificate, having tried different file formats (jpg, pdf) and ensuring the file size is under 1MB. They seek solutions and note that the consulate in Chicago typically takes 1-2 weeks to respond to inquiries. Comments highlight that a specific button is needed for file attachment and pose unrelated questions about vaccine uptake.