fix: fix the error when profits are zeros

starbot/painter/LiveReportGenerator.py

@@ -671,7 +671,7 @@ class LiveReportGenerator:
         length = len(profits)
         indexs = list(range(0, length))
 
-        abs_max = math.ceil(max(max(profits), abs(min(profits))))
+        abs_max = math.ceil(max(max(profits), abs(min(profits)), 0.01))
         start = -abs_max - (-abs_max % 10)
         end = abs_max + (-abs_max % 10)
         step = int((end - start) / 10)