DataTables warning: table id=DataTables_Table_0 - Requested unknown parameter '12' for row 0. For more information about this error, please see http://datatables.net/tn/4
This Stack Overflow thread seems to describe the same issue. The suggested solution is to call renderDataTable() and dataTableOutput() with DT rather than with Shiny but if this functionality is wrapped up in esquisse I'm not sure what we can do about it other than put an issue in over there.