You can set the range by enabled Advanced mode and adding this to your layout options:
"yaxis": {
"range": [
0,
11
]
}
Not sure why your dates are displayed like that, but you can add some manual configuration to the displaying of dates perhaps, again in the Layout options:
"xaxis": {
"tickformat": "%d-%m-%y"
}
You can refer to the plotly documentation for more information.