I am having this error while trying to take a test and if i cancel the window i will be automatically fail and i dont know what to do.
The tests have issues. You have two tries to take a test, though you do have to wait 24 hours between attempts. If this is your second try and you can’t take the test for another 3 months, you can try opening a ticket with Customer Support.
@imagination7413 it happened to me twice so that a problem because now i have to wait 3 months.