SSD Sanitize Long Time

Hello, I have a problem with my SanDisk Ultra II SSD which is take time to Sanitize process, I have been waiting for 5 hours for now, what am I supposed to do, wait or exit to the process?

And I have also error code 35 during the Sanitize process with SanDisk DashBoard program, anyone knows about what is this code means?

it should only take a few seconds. cancel it and try a secure erase and see if secure erase will complete.