There is no category color being shown on the calendar and event name is in white color.

The plugin is somehow looking for a css file in my root folder.
I’m getting this error in the console:

Cannot find “wpcalendars-colors.css?ver=5.3.2” in the root folder of my website.

Is there a way to add the css?
Please help resolve the issue.
Thanks

Is it possible to change the background color of the Weekend dates?