Delete row 18 from invoices

id 18
trainer_id 11
student_id 10
invoice_no 2026-0006
category quote
lines [{"service":"10× Schnupperkurs",&# ...
total_cents 59000
status open
issued_at 2026-08-18 17:58:05
paid_at NULL
archived_at NULL
reminder1_at NULL
reminder2_at NULL
Cancel