# Troubleshooting#

• You forgot to run init_notebook_mode, or you deleted that cell or its output
• Or you ran init_notebook_mode(connected=True) but you are not connected to the internet?
Please note that if you change the value of the connected argument in the init_notebook_mode cell, you will need to re-execute all the cells that display interactive tables.
If the above does not help, please check out the ChangeLog and decide whether you should upgrade itables.