diff --git a/dashboard/src/components/SystemMetrics.vue b/dashboard/src/components/SystemMetrics.vue
index aeb3a7e12..e9106bacd 100644
--- a/dashboard/src/components/SystemMetrics.vue
+++ b/dashboard/src/components/SystemMetrics.vue
@@ -69,10 +69,10 @@ async function liveRefresh() {
     for (const [id, metric] of Object.entries(data)) {
       const idx = id !== 'system' ? containers.value.findIndex(c => c.id === id) : containers.value.length;
 
-      cpuGraphItem.value.pushData(idx, metric.cpu);
-      memoryGraphItem.value.pushData(idx*2, metric.memory, metric.swap || []); // apps have no swap
-      diskGraphItem.value.pushData(idx*2, metric.blockReadRate, metric.blockWriteRate);
-      networkGraphItem.value.pushData(idx*2, metric.networkReadRate, metric.networkWriteRate);
+      if (cpuGraphItem.value) cpuGraphItem.value.pushData(idx, metric.cpu);
+      if (memoryGraphItem.value) memoryGraphItem.value.pushData(idx*2, metric.memory, metric.swap || []); // apps have no swap
+      if (diskGraphItem.value) diskGraphItem.value.pushData(idx*2, metric.blockReadRate, metric.blockWriteRate);
+      if (networkGraphItem.value) networkGraphItem.value.pushData(idx*2, metric.networkReadRate, metric.networkWriteRate);
 
       if (id === 'system') {
         blockReadTotal.value = prettyDecimalSize(metric.blockReadTotal);
@@ -161,10 +161,10 @@ async function rebuild() {
     blockWriteTotal.value = prettyDecimalSize(metrics.system.blockWriteTotal);
   }
 
-  cpuGraphItem.value.setDatasets(datasets.cpu);
-  memoryGraphItem.value.setDatasets(datasets.memory);
-  diskGraphItem.value.setDatasets(datasets.disk);
-  networkGraphItem.value.setDatasets(datasets.network);
+  if (cpuGraphItem.value) cpuGraphItem.value.setDatasets(datasets.cpu);
+  if (memoryGraphItem.value) memoryGraphItem.value.setDatasets(datasets.memory);
+  if (diskGraphItem.value) diskGraphItem.value.setDatasets(datasets.disk);
+  if (networkGraphItem.value) networkGraphItem.value.setDatasets(datasets.network);
 
   if (period.value.hours === 0) return await liveRefresh();
 }