Hi, loograk
I have investigated and figured out the issue on your site it caused by inconsistent data types in your sheet data.
The csv data has been mixed between string and int type.
For example, 665 is int; 205,75 is string
so instead of using ,
you should change string data into float data by using .
205,75 -> 205.75
then true sample data will look like
So you kindly check and correct the data.
I attached the sample correct data.csv below.
Regards,
Vangogh