INsta Crash while tryin to bake fluid sim

in my blend i have an original mesh (layer 1) and the same objects joined (layer 3)

im trying to make a simple fluid sim on layer 3 bit it keeps crashing. i had a lot of mess and cleand it all up but is that what is effecting it ?

i have 1 Domain, 1 Inflow and 1 outflow as well as the main object as an obstacle.
please help any way you can :slight_smile: