Error: Solution number out of range

Hi,

I am trying to do a 2D parametric sweep in COMSOL. I did it many times recently, but today COMSOL shows up an error which said "Solution number out of range" while trying to extract the data in the form of a table after the simulation completed (see attached image).

I have no clue why this is happening and any solution to this problem is appreciated.

Also I must admit it that this is the first time I tried to use parallel processing on cluster, if that helps.

Thank You.

Regards, Sanjit