A 55-year-old patient with chronic kidney disease tested repeatedly positive for Anti-HCV by ELISA. But COBAS ECLIA gave a negative result. ELFA was done using miniVIDAS, which was positive. What are the chances that this can occur?

Even though chemiluminescence assay is more sensitive, it is negative. HCV RNA PCR was performed and it was negative. What report should be issued to the patient?