linking a project

My application is compiled well, i takes some ".dll" and ".exe" that I think are related to my modification, I launch the application that turns for duration, but after some days it crash .
in the log of "Dr Watson" Application i see some error like :

*** WARNING: Unable to verify checksum for D:\Alcatel\DataServer\Bin\Utile.dll
*** ERROR: Symbol file could not be found. Defaulted to export symbols for D:\Alcatel\DataServer\Bin\Utile.dll -


is it the problem happens because i should take all my application's dll and exe?
what can be the origin of the problem?
have you any explication ?

i send you also the log of "Dr Watson" Application.