Data protector postgresql integration failed

Hi All 

I try to using data protector 10.90 integration with postgresql database, when configuring postgresql integration everything seems ok, but when I try to backup postgresql database it throw an error it say's "cannot connect to database using username bla bla bla"

error 182:113

I had to check the postgres service on dp Client and it's already start, also i had to test the connection using psql command on dp server and i can connect to that database server.

Need advice for solving this problem 

Thank you