Hi Deepak,
In case you are trying to load from the PSA to the target
Please try the below steps
1> Check if there are any erroneous records are existing in psa, if there are any records with errors, edit and manually update to data target.
2>Try to load a single record and see whether it is successful.
3>Try replicating the data source as well
Let me know if it helps
Regards
Vivek