Dear Florence,
Are you sure the columns are right? In the CSV you have these headers :
id, Ycoordinate, Xcoordinate, elevation, slope, aspect, soil, climate, **hillshade**, hillshade, gez, **system:index**, system:index, adm0_name , adm1_name, adm2_name
Are you sure the hillshade **hillshade** and system:index **system:index** are necessary?
Check the expected format of the plot file CSV expected by the CE survey by openeing opening the Open FOris Foris Collect Survey DEsigner, Designer, list of sur veys, surveys, choose your survey and then go to advanced options "**Export Collect Earth grid template**"
![alt text][1]
[1]: http://www.openforis.org/support/upfiles/chrome_2019-09-23_20-23-18.png