Error loading IPython Jupyter notebook:

Question

I have an error while loading IPython Jupyter notebook. Also errors occur on the shell. Is there anyone who could help me for solving these errors?

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Errors which occur on the shell:

Unhandled error in API request
DatabaseError: database disk image is malformed

Error loading Jupyter notebook:

An unknown error occurred while loading this notebook. 
This version can load notebook formats v4 or earlier. See the server log for details.

Answer 1

There seems to be a problem with your history database. Find your history.sqlite. It should be here:

~/.ipython/profile_default/history.sqlite

Rename or remove it and try to start the notebook server again.