TypeError: Cannot create graphics instruction outside the main Kivy thread

[codynewlun]

I am experiencing an issue when using QuESt BTM. The error below occurs when I go to select a rate structure.

Exception in thread Thread-7:
Traceback (most recent call last):
File "threading.py", line 973, in _bootstrap_inner
File "threading.py", line 910, in run
File "es_gui\apps\btm\cost_savings.py", line 115, in _generate_preview
self.generate_schedule_charts()
File "es_gui\apps\btm\cost_savings.py", line 152, in generate_schedule_charts
self.energy_weekday_chart.draw_chart(np.array(weekday_schedule_data), palette, labels, legend_labels=legend_labels)
File "es_gui\proving_grounds\charts.py", line 1211, in draw_chart
self.generate_tiles(schedule_data, category_colors, labels)
File "es_gui\proving_grounds\charts.py", line 1180, in generate_tiles
row_label = Label(pos=(0.80x0 - self.width/2, self.max_height/2 - (iy+0.5)(self.tile_height + self.tile_spacing)),
File "kivy\uix\label.py", line 317, in init
File "kivy\uix\widget.py", line 361, in init
File "kivy\graphics\instructions.pyx", line 608, in kivy.graphics.instructions.Canvas.init
File "kivy\graphics\instructions.pyx", line 154, in kivy.graphics.instructions.InstructionGroup.init
File "kivy\graphics\instructions.pyx", line 60, in kivy.graphics.instructions.Instruction.init
TypeError: Cannot create graphics instruction outside the main Kivy thread