none type error

[arun10797]

Traceback (most recent call last):
File "/home/arush/Desktop/pos/Open-Source-Python-POS-and-Accounting-Software-master/mainInterface.py", line 103, in
main()
File "/home/arush/Desktop/pos/Open-Source-Python-POS-and-Accounting-Software-master/mainInterface.py", line 101, in main
mainInterface(None).Show()
File "/home/arush/Desktop/pos/Open-Source-Python-POS-and-Accounting-Software-master/mainInterface.py", line 74, in init
self.m_incomeStatementPanel = incomeStatementPanel(self.m_notebook1)
File "/home/arush/Desktop/pos/Open-Source-Python-POS-and-Accounting-Software-master/incomeStatementPanel.py", line 85, in init
self.populateTable()
File "/home/arush/Desktop/pos/Open-Source-Python-POS-and-Accounting-Software-master/incomeStatementPanel.py", line 139, in populateTable
openInv = curs.fetchone()['inventory']
TypeError: 'NoneType' object is not subscriptable

[codiumtech]

Did you find the solution?