Runtime Error in component "EnsEMBL::Web::Component::Export::LDFormats [content]"

Function EnsEMBL::Web::Component::Export::LDFormats fails to execute due to the following error:

	Can't use an undefined value as a HASH reference at
	... /nfs/public/ro/ensweb/live/grch37/www_113/ensembl-webcode/modules/EnsEMBL/Web/Component/Export/LDFormats.pm
	... line 80.