Resolving Insufficient Number of Arguments Error

How do I: Get rid of the following error:

Tech = XXXXXXEncountered error with Get(int?, int?) for TechnicianController

An insufficient number of arguments were supplied for the procedure or function dbo.obfu_FormatPhone. An insufficient number of arguments were supplied for the procedure or function dbo.obfu_FormatPhone. An insufficient number of arguments were supplied for the procedure or function dbo.obfu_FormatPhone. An insufficient number of arguments were supplied for the procedure or function dbo.obfu_FormatPhone. An insufficient number of arguments were supplied for the procedure or function dbo.obfu_FormatPhone. An insufficient number of arguments were supplied for the procedure or function dbo.obfu_FormatPhone.
The technician is using an old version of TechPro that is no longer supported. Update the technician's device.