bug#23958: Intermittent failure to compress

[Office Info]

We are on OS 10.9.5, we are a dental office using MacPractice practice 
management software.  The MacPractice software does a scheduled backup each 
night then uses gzip to compress the info.  We are having intermittent backup 
failures and the MacPractice IT guys say that it is a failure with the gzip.  
What do we need to do to reinstall or repair the gzip?