Merge pull request #107 from Chloe070196/usage_data_download

fix: hardcode help block id

code/web/interface/themes/responsive/Admin/usage-graph.tpl

@@ -30,7 +30,7 @@
 		</div>
 		<div>
 			<a id="UsageGraphExport" class="btn btn-sm btn-default" href="/Admin/AJAX?method=exportUsageData&stat={$stat}&instance={if !empty($instance)}{$instance}{/if}">{translate text='Export To CSV' isAdminFacing=true}</a>
-			<div id="{$propName}HelpBlock" class="help-block" style="margin-top:0"><small class="text-warning"><i class="fas fa-exclamation-triangle"></i> {translate text="Exporting will retrieve the latest data. To see it on screen, refresh this page." isAdminFacing=true}</small></div>
+			<div id="exportToCSVHelpBlock" class="help-block" style="margin-top:0"><small class="text-warning"><i class="fas fa-exclamation-triangle"></i> {translate text="Exporting will retrieve the latest data. To see it on screen, refresh this page." isAdminFacing=true}</small></div>
 		</div>
 	</div>
 {/strip}