Traceback (most recent call last):
  File "C:UsersxxxAppDataRoamingBlender FoundationBlender2.80scriptsaddonsflip_fluids_addonuidomain_simulation_ui.py", line 271, in draw
    self.draw_bake_operator(context, box)
  File "C:UsersxxxAppDataRoamingBlender FoundationBlender2.80scriptsaddonsflip_fluids_addonuidomain_simulation_ui.py", line 43, in draw_bake_operator
    frame_str = str(int(dprops.simulation.selected_savestate) + 1)
ValueError: invalid literal for int() with base 10: ''

location: <unknown location>:-1

Traceback (most recent call last):
  File "C:UsersxxxAppDataRoamingBlender FoundationBlender2.80scriptsaddonsflip_fluids_addonuidomain_simulation_ui.py", line 271, in draw
    self.draw_bake_operator(context, box)
  File "C:UsersxxxAppDataRoamingBlender FoundationBlender2.80scriptsaddonsflip_fluids_addonuidomain_simulation_ui.py", line 43, in draw_bake_operator
    frame_str = str(int(dprops.simulation.selected_savestate) + 1)
ValueError: invalid literal for int() with base 10: ''

location: <unknown location>:-1