Something wrong with my netdrive!need help!

Recently I couldn’t write anything into all my drives !including ftp, onedrive and webdav!
everytime I paste something into , a window jumps out and tells me: you need the administrator authority to copy this file ! access deniyed!
I’d like to paste a screen shot here:

can someone help me?
After paying a lot of money then you get a software that doesn’t help makes you almost cry…

Do you change default cache path in NetDrive?

yes you’ve got it. it is just the reason! I changed it to the original path , it helped.