AJAX error - Runtime Error in component "EnsEMBL::Web::Component::Transcript::TranscriptImage [content]"

Function EnsEMBL::Web::Component::Transcript::TranscriptImage fails to execute due to the following error:

	Can't call method "Obj" on an undefined value at
	... /usr/local/ensembl-live/modules/EnsEMBL/Web/Component/Transcript/TranscriptImage.pm line 17.