diff --git a/src/components/task/content/configuration/SaveConfigModal.vue b/src/components/task/content/configuration/SaveConfigModal.vue
index e70c4a1b..e98768d9 100644
--- a/src/components/task/content/configuration/SaveConfigModal.vue
+++ b/src/components/task/content/configuration/SaveConfigModal.vue
@@ -36,6 +36,7 @@ export default {
   methods: {
     confirm: function () {
       this.$emit('confirm', [this.inputValue, this.lock])
+      this.inputValue = ''
     },
     undo: function () {
       this.inputValue = ''
diff --git a/src/store/modules/task/content/actions/chartAct.js b/src/store/modules/task/content/actions/chartAct.js
index 457735d9..4d144e4a 100644
--- a/src/store/modules/task/content/actions/chartAct.js
+++ b/src/store/modules/task/content/actions/chartAct.js
@@ -862,6 +862,7 @@ const chartActs = {
     const { chartID, gridIndex, gridSourceIndex } = payload
 
     const gridSource = state.chartData[chartID].gridSource[gridIndex][gridSourceIndex]
+    if (gridSource === undefined) return
     // remove series
     const seriesIndex = state.chartData[chartID].series.findIndex((val) => {
       return val.name === gridSource.name