Hi Cecile,
we’ve installed a new GEOS and rgeos version New software installed GEOS and rgeos that are compatible with R version 4.0.0.
In your case, the error you have in the screenshot is probably because you have an incompatible Rccp version as you probably installed it with R 4.0.0 and it isn’t working with R 3.6.2. Just erase it.
Best
Yann