Sonoff iHost and Node red: influxdb backup node error

I´m running Node red in a Sonoff iHost. I have running the Nodered container and running too an influxdb container, so I´m hosting my own database. As iHost relays on an SD card (like Raspberry) one day I thought I will loose my database the day my SD card dies and decided to try to move the influx database to a server or any other site not hosted inside the iHost, and here starts the problem. I don´t know how to make a backup of my database. I discovered the node “influxdb-backup” and installed it in node red. I configured everything and when I launch the backup I receive this message trough the second output of the node: “/bin/bash: line 1: influxd: command not found”. And that´s the end, my end. I can´t move forward that point. Tried to copy manually the database files but I can´t find them in the closed system of iHost, if fact I don´t know what filnames to look for. I contacted with the node author and his answer was “That is because the node assumes that node red can run the backup utility via the command line, but that is running inside the node-red container, whereas you need to run it inside the influxdb container. You should be able to do it manually if you open a terminal in the influxdb container then you should be able to run the commands. Probably the command you need is just influxd backup -portable path/to/where/to/save/the/backup.” As there is no command line in iHost it´s impossible to do this, so under my limited knowledge about coding and about containers… I don´t know what else I can do. Any help would be apreciated.