Question i couldn't install Dropbox

[The cad]

i couldn't install Dropbox. that show like this , please help

https://drive.google.com/file/d/15iSJv2zYOgxWyDM2KmyfGpiOxNmh8LBF/view?usp=sharing

 

[Ralston18]

When you clicked the "Show me help" link what was presented? Error 2 = ?