How deal with space in folders and files name using rclone

Hi everyone, i just started using rclone.
I made a synchronisation of files on my server and dropbox, unfortunately i have two problems : frist i can't recover folders with space in their name when using the rclone copy command, rclone consider space like a separation between two options in the command. How can i deal with it?
Second, i use crypt remote but i just check rclone can't crypt all files in my crypt remote.
Thanks for your help

Please provide all details as per help and support template.

welcome to the forum,

same as with any program, enclose the string with quotes

check out the rclone docs
If your names have spaces or shell metacharacters (e.g. *, ?, $, ', ", etc.) then you must quote them.
Use single quotes ' by default.

the quote varius with different operating sytesms.
on windows, using cmd.exe , need to use "
rclone ls "remote:foldername with space/filename with space.ext"