The word "format" appears below stata plot output

[roblem]

When I run the code

sysuse auto
hist price

Expected results: the plot
Actual Results: the plot + the text format

Here is a screenshot:

This is running on a jupyterhub server:

Selected Jupyter core packages...
IPython          : 8.3.0
ipykernel        : 6.13.0
ipywidgets       : 7.7.0
jupyter_client   : 7.3.0
jupyter_core     : 4.9.2
jupyter_server   : 1.17.0
jupyterlab       : 3.4.0
nbclient         : 0.6.2
nbconvert        : 6.5.0
nbformat         : 5.4.0
notebook         : 6.4.11
qtconsole        : not installed
traitlets        : 5.1.1