diff --git a/frappe/desk/doctype/dashboard_chart/dashboard_chart.py b/frappe/desk/doctype/dashboard_chart/dashboard_chart.py
index f6badeac44..a425da5980 100644
--- a/frappe/desk/doctype/dashboard_chart/dashboard_chart.py
+++ b/frappe/desk/doctype/dashboard_chart/dashboard_chart.py
@@ -260,7 +260,7 @@ def get_heatmap_chart_config(chart, filters, heatmap_year):
 	}
 
 
-def get_group_by_chart_config(chart, filters):
+def get_group_by_chart_config(chart, filters) -> dict | None:
 	aggregate_function = get_aggregate_function(chart.group_by_type)
 	value_field = chart.aggregate_function_based_on or "1"
 	group_by_field = chart.group_by_based_on
@@ -281,11 +281,10 @@ def get_group_by_chart_config(chart, filters):
 
 	if data:
 		return {
-			"labels": [item["name"] if item["name"] else "Not Specified" for item in data],
+			"labels": [item.get("name", "Not Specified") for item in data],
 			"datasets": [{"name": chart.name, "values": [item["count"] for item in data]}],
 		}
-	else:
-		return None
+	return None
 
 
 def get_aggregate_function(chart_type):
@@ -304,8 +303,8 @@ def get_result(data, timegrain, from_date, to_date, chart_type):
 		for d in result:
 			count = 0
 			while data_index < len(data) and getdate(data[data_index][0]) <= d[0]:
-				d[1] += data[data_index][1]
-				count += data[data_index][2]
+				d[1] += cint(data[data_index][1])
+				count += cint(data[data_index][2])
 				data_index += 1
 			if chart_type == "Average" and count != 0:
 				d[1] = d[1] / count