Added a descriptive error when field data cannot be found in the field settings table.
Added a descriptive error when field data cannot be found in the field settings table.

bauhouse/sym-todo-list,alexnantel88/symphony-2,ljonka/symphony-2,astudio/remixhair,jurajkapsz/symphony-2,mazedigital/jcilearn,symphonycms/sym-getsymphony,blaXXabla/projet_test_symphony,ljonka/symphony-2,johnpuddephatt/symphony-2,DeuxHuitHuit/symphony-2,michael-e/symphony-2,michael-e/symphony-2,thebestsophist/personal-health-diary,wastemobile/Symphony2.3.6,thebestsophist/personal-health-diary,DavidForster/symphony-2,ayellowraven/projectplaten,bauhouse/sym-todo-list,twiro/symphony-2,allen/auth.getsymphony.com,jdsimcoe/symphony-boilerplate,symphonycms/symphony-2,bauhouse/Piano-Sonata,NikoMostWanted/symphony-2,roshinebagha/Symphony-Test,symphonycms/sym-getsymphony,johnpuddephatt/symphony-2,allen/auth.getsymphony.com,jensscherbl/symphony,DeuxHuitHuit/symphony-2,BloodBrother/symphony-2,alexnantel88/symphony-2,roshinebagha/Symphony-Test,astudio/remixhair,bauhouse/sym-pears,brendo/symphony-2,brendo/symphony-2,bauhouse/Piano-Sonata,jdsimcoe/symphony-boilerplate,twiro/symphony-2,jurajkapsz/symphony-2,jonmifsud/symphony-2,NikoMostWanted/symphony-2,jdsimcoe/symphony-boilerplate,blaXXabla/projet_test_symphony,rzantolas/Symphony-Test,avanteweb/symphony-2,avanteweb/symphony-2,jonmifsud/symphony-2,mazedigital/jcilearn,symphonycms/symphony-2,jensscherbl/symphony,mazedigital/jcilearn,BloodBrother/symphony-2,ayellowraven/projectplaten,rzantolas/Symphony-Test,wastemobile/Symphony2.3.6,bauhouse/sym-pears,DavidForster/symphony-2,jdsimcoe/symphony-boilerplate