Error in Indexing TREX - Talent

Hello,

I am facing issue in Talent TREX indexing.  I am creating conenctors indexing using transaction ESH_COCKPIT. The system is throwing " error while preparation" and all 32 objects go in error.

Following is the error snap shot. Can anyone help why this error is coming.

Does someone have clue why this error is diasplayed.

Thanks,

CG Ash.