DataTable Showing blank spaces between columns

Hi everyone.
I had created a webpage which includes dash table and plotly graphs. I had used django and django_plotly_dash for it.
I’m facing a problem with dash_table.DataTable. I had used horizointal scroll table with fixed header, but it’s showing a blank space betweeen fixed column and other columns whenever the page loads. Once i adjeust the browser size, the table gets to it’s desired position. Please refer to the attached screenshot.

pls click this link to go to the same webpage.

link

You should paste the code. Check your multi-level index.