Errors on text.get()

[eneskristo at gmail.com]

Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python33\lib\tkinter\__init__.py", line 1475, in __call__
    return self.func(*args)
  File "C:/Users/User/PycharmProjects/Cesarian Codes/project.py", line 43, in gen_random
    string = text.get('1.0', 'end')
  File "C:\Python33\lib\tkinter\__init__.py", line 3104, in get
    return self.tk.call(self._w, 'get', index1, index2)
_tkinter.TclError: invalid command name ".44500976.44544352"

I'm having a strange error. I haven't found anything online so far. If I should supply parts of the code, please post here. Thank you in advance!