Duplicate Key Value Violation

Dear All,
I am looking at our instance log file and i noticed the following error:

ERROR 2016-11-09 00:39:47,917 ERROR: duplicate key value violates
unique constraint "datavalue_pkey"

I can't explain the error neither have a clue how to solve this issue.
Please can anyone help interpreting this error and give me solution to
solve this error.

Please find the attached log file.

error.txt (695 KB)




This was found in my spam directory,

error.txt (695 KB)


Best Regards,

Brajesh Murari,

Postgraduate, Dept of CSE,

Chaudhary Devi Lal University, Sirsa,

India. http://www.cdlu.ac.in

The three basic dimensions of human development: a long and healthy life, access to knowledge, and a decent standard of living.

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