Problem solved! I did what I've re-read in German forum about CLI thru sftp, then after I logged in i simply used ls to get correct folder . My first backup is done and also I set the schedule for it.
viewtopic.php?p=27932#p27932

Hello my friends, After long time I finally have a server where I was able to install keyhelp and I love it! The only problem that I'm facing right now is to setup remote ftp for backups. I would like that keyhelp do scheduled backups to my NAS (Terramaster F2-210) via ftp. 1. On NAS I managed to ...

Same price as KH so your vps is free? Is this vps VZ or KVM? Same price as keyweb, not keyhelp. They are on virtuozzo, but unfortunately on v6 and not v7, that's why I can't officially update. Although I did test today and update with official debian source.list to Debian9, but keyhelp gives me lot ...

I do plan to change provider , but I'm committed til January 2021..till then is there any way to install v19.3.1?
Support from keyhelp and community on forum made me think to go with keyweb, as prices are very similar to my current provider (also German provider).

Well that's the case. Debian 8 is supported, but not higher and by words of Aleksander, Keyhelp 20.0 should work on Debian 8?

But to upgrade from 8 to 9 from link that Aleksander provided, I understand that I need keyhelp installed first? Which I dont have at the moment .

Hi Aleksander and thanks for your reply. Unfortunately im getting this error ~# wget https://install.keyhelp.de/get_keyhelp.php -O install_keyhelp.sh ; bash install_keyhelp.sh ; converted 'https://install.keyhelp.de/get_keyhelp.php' (ANSI_X3.4-1968) -> 'https://install.keyhelp.de/get_keyhelp.php ...

Hi guys, I'm about to try Keyhelp but I do have questions. Well, for now only two, with possible one answer only :). My provider offers me debian 8, so if I follow documentation on website, I can make upgrade up to 10? If not, can latest Keyhelp work on Debuan8? Stay healthy :) Dennis Personal edit ...