premiere deleted all new shows even with 40% empty

i had 60 % full and i'm using pytivo to upload a movie that is 1 gig. it deleted tons of shows. at least 30 SD shows from a sub channel (very little space) and some 1 hour shows.

it started to do this last night and i stopped it because i saw it was deleting files but it was about 68% full then.

so what gives?

premiere deleted all new shows even with 40% empty