Questione giuridica chiave
Whether the respondents were liable under Art. 52 aLAVS for unpaid AVS contributions of X.________ SA.
Decisione estratta
The cantonal court erred by not examining the respondents' fault and liability under Art. 52 aLAVS; later faults by the bankruptcy office did not interrupt causal linkage to the fund's damage.
Motivazione estratta
The fund's damage arose on the bankruptcy date, when recovery became impossible in the ordinary collection process. Subsequent mishandling of liquidation could harm the respondents' recourse position, but it was not a concurrent cause of the fund's loss.