Error uploading timeshift snapshots to cloud with Nextcloud desktop sync client

Hello, İ’m trying to upload my snapshots to my cloud but when i choose the folder which is “/run/timeshift/” in the sync client and it says “You have no permission to write the selected folder”, so i thought i’d open the client with admin permissions by typing “sudo nextcloud” and entering my pass in the terminal i get this message in return:

“QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to ‘/tmp/runtime-root’
[4934:4934:0121/] Running as root without --no-sandbox is not supported. See crbug[dot]com/638180.”

Is there an easy solution to this?