That's a JS conflict.
As explained here https://github.com/plomino/Plomino/tree/1.x#installation you need to pin collective.js.datatables = 2.0.1
That's a JS conflict.
As explained here https://github.com/plomino/Plomino/tree/1.x#installation you need to pin collective.js.datatables = 2.0.1