Originally Posted by
MSPeconomist
This sounds like either an unpublished fare or a partially flown ticket. Do you know what the ecredit should be?
Not necessarily, I had a completely ordinary, DL-booked flight that I cancelled without flying any segments and it also got the Oops message when looking at it in My Wallet. It did go through several rounds of schedule change, so the determining factor may be whether it's been reissued.