Non valid samplescan is not robust enough

Playing with samplescan and form, it sounds like it is not robust enough.

Difficult to know what's wrong, and i feel like i have to restart the server if it fails.

In the GUI side, critical error is display which do not allow anymore to use the GUI.

  48 | };
  49 | 
  50 | render() {
> 51 |   const { properties } = this.props.sampleSchema.definitions.SampleSchema;
     | ^  52 |   const schema = {
  53 |     name: properties.name,
  54 |     offsetx: properties.offsetx,

Fixing the form error does not look to fix the button

Finally this message was displayed

2021-11-29 19:24:19,223	ui	ERROR	row is undefined
Traceback (most recent call last):
  File "/users/valls/workspace/daiquiri-tomo.git/daiquiri.git/daiquiri/core/components/logging.py", line 87, in post
    raise UIError(message, frame=kwargs.get("frame"), error=kwargs.get("error"))
daiquiri.core.components.logging.UIError: row is undefined
2021-11-29 19:24:19,223	daiquiri.core.components.logging	ERROR	A UI Error Occured
  row is undefined
    at SampleCell (/users/valls/workspace/daiquiri-tomo.git/daiquiri-ui.git/src/components/dc/DCList.jsx:68:)