diff --git a/src/components/Discover/Map/Filter/AttributesFilter.vue b/src/components/Discover/Map/Filter/AttributesFilter.vue
index f47ae26..3290f8e 100644
--- a/src/components/Discover/Map/Filter/AttributesFilter.vue
+++ b/src/components/Discover/Map/Filter/AttributesFilter.vue
@@ -650,6 +650,7 @@ function getPercentLabel(val) {
  * @param {object} chart - The Chart.js instance data.
  */
 function resizeMask(chart) {
+  if (selectRange.value === 0) return;
   const from = (selectArea.value[0] * 0.01) / (selectRange.value * 0.01);
   const to = (selectArea.value[1] * 0.01) / (selectRange.value * 0.01);
   resizeLeftMask(chart, from);
@@ -663,6 +664,7 @@ function resizeMask(chart) {
 function resizeLeftMask(chart, from) {
   const canvas = document.querySelector("#chartCanvasId canvas");
   const mask = document.getElementById("chart-mask-left");
+  if (!canvas || !mask) return;
   mask.style.left = `${canvas.offsetLeft + chart.chartArea.left}px`;
   mask.style.width = `${chart.chartArea.width * from}px`;
   mask.style.top = `${canvas.offsetTop + chart.chartArea.top}px`;
@@ -676,6 +678,7 @@ function resizeLeftMask(chart, from) {
 function resizeRightMask(chart, to) {
   const canvas = document.querySelector("#chartCanvasId canvas");
   const mask = document.getElementById("chart-mask-right");
+  if (!canvas || !mask) return;
   mask.style.left = `${canvas.offsetLeft + chart.chartArea.left + chart.chartArea.width * to}px`;
   mask.style.width = `${chart.chartArea.width * (1 - to)}px`;
   mask.style.top = `${canvas.offsetTop + chart.chartArea.top}px`;