Error in oned.log while creating 'new user'

Below is the error message i seen in oned.log while creating new-user using sunstone-portal/command line.

Thu May 11 08:59:52 2017 [Z0][ReM][D]: Req:3072 UID:0 UserAllocate invoked , “shahrol2”, ****, “core”, unknown param type

Even though it showing error in log, but concern user been created-successfully.
FYI,Opennebula-Version: 5.2.1

Thanks & Regards,

That message is given by the log module that is not able to print arrays, the user is correctly created.

Hi Javi why this happen ( module not able to print arrays) is there any solution or step to solve this?