Answer 1

Unfortunately maybe R code playground is not interactive here in SoloLearn...
Or something else?
Check the first 6 lines of this code
https://code.sololearn.com/cLNAwVUU1dno/?ref=app

Answer 2

R input
https://code.sololearn.com/cApD58auIZn0/?ref=app
https://code.sololearn.com/cF15NOix4aJr/?ref=app
https://code.sololearn.com/cXcVcZwryzhM/?ref=app

Answer 3

I deleted it and everything is back to fine
https://www.gmglobalconnect.me/