Invalid parameter at import

I have an import CSV file containing 2 lines with one column and 1 record, I receive the following:

This is the CSV file.

I cannot get my head around why this happens. Any idea?

Could you please share the contents of the CSV file as text?

contacts datefield test.csv (14 Bytes)

The error makes sense now. The name of the file becomes the name of the data table. If the file is named contacts datefield test.csv, this will result in an invalid table name. I renamed the file to contactsCategory.csv and the import went through just fine: