First Arbiter fight - game crashed and lost all fragments

Hi,

The game crashed during my first fight with Arbiter. When I logged back in I couldn`t enter portals to monolith, it said unable to rejoin after the death (or something like that). When I reentered monolith from atlas, it opened new instance and I have to farm all fragments again.

Any chance I can get my fragments back as this is purely technical issue?