Alter existing function, Correct Error

I operate an opensource system called EmonCMS to record energy usage for a client ([login to view URL]) EmonCMS uses the following work flow: 1. data from a remote energy meter posts data to EmonCMS using JSON in the URL String (this is called and input in EmonCMS) 2. EmonCMS then allow for the editing of the incoming values and is then exposed to a dashboard (this is called a feed in EmonCMS, each feed has its own table in mysql) 3. a feed is then used in displaying data on graphs and gauges. I need the following work completed (see attached docx for screen shots and more information) 1. Please change calculation in graph for current month to show average per day as (total / current day of month) currently it is (total / total days in the month) 2. Temperate cron job is producing an error (see screen shot) please investigate and correct error and if possible fill in missing data. Thanks, Chris