Unit error after sending experiment to Pavlovia

URL of experiment: Pavlovia

Description of the problem:

I have a problem that when I run the experiment in Pavlovia, it gives an error shown on the screenshot.

In the experiment settings my preferred units are ‘deg’.

For those components which have to be sized in pixels, I have chosen ‘pix’ in the ‘units’ field of these components.

For those components which have to be sized in ‘deg’, I have chosen ‘from exp settings’ in the units field.

I have no idea what I can do to solve it.
P.S. The following post did not help me with the problem.

Thanks in advance.

Elena