Exception

Message Invalid list index 1.
Detail In function ListGetAt(list, index [, delimiters]), the value of index, 1, is not a valid as the first argument (this list has 0 elements). Valid indexes are in the range 1 through the number of elements in the list.
Extended Info
Tag Context \\aanwebfiles\htdocs_prod\www.aan.com\elibrary\ovid\ovidService.cfc (452)
\\aanwebfiles\htdocs_prod\www.aan.com\elibrary\neurologynow\model\listener\neurologynowListener.cfc (51)
\\aanwebfiles\htdocs_prod\libraries\MachII-1-8-1\framework\invokers\EventInvoker.cfc (94)
\\aanwebfiles\htdocs_prod\libraries\MachII-1-8-1\framework\commands\NotifyCommand.cfc (95)
\\aanwebfiles\htdocs_prod\libraries\MachII-1-8-1\framework\EventHandler.cfc (88)
\\aanwebfiles\htdocs_prod\libraries\MachII-1-8-1\framework\RequestHandler.cfc (386)
\\aanwebfiles\htdocs_prod\libraries\MachII-1-8-1\framework\RequestHandler.cfc (334)
\\aanwebfiles\htdocs_prod\libraries\MachII-1-8-1\framework\RequestHandler.cfc (278)
\\aanwebfiles\htdocs_prod\libraries\MachII-1-8-1\framework\RequestHandler.cfc (208)
\\aanwebfiles\htdocs_prod\libraries\MachII-1-8-1\mach-ii.cfm (137)
\\aanwebfiles\htdocs_prod\beta.thebrainmatters.org\resources\neurologynow\index.cfm (12)