Pi-top CEED Thonny Error

Hi there. We are getting the following error when opening Thonny on two different CEEDs. Does anyone know how to fix this error and how to avoid it in the future?

Traceback (most recent call last):
File
“/usr/lib/python3/dist-packages/thon
ny/init.py”, line 38, in launch
bench =
workbench.Workbench(server_sock
et)
File
“/usr/lib/python3/dist-packages/thon
ny/workbench.py”, line 87, in __init
self. init window()
File
“/usr/lib/python3/dist-packages/thon
ny/workbench.py”, line 179, in
init_window
self.get_option(“layout.top”)))
File
"/usr/lib/python3.5/tkinter/init.py
", line 1698, in wm_geometry
return self.tk.call(‘wm’,
"geometry’, self._w, newGeometry)
_tkinter. TclError: bad geometry
specifier “723x-26+78+316”

Can anyone help with this??? Thanks.