@raphaey As I said above I don't have this device so no direct knowledge but, from what you say you only had recovery installed. Either try again and choose the wipe option on the installer you should not have to do anything other than follow the installer instructions.
Or as @Dimka said
"managed to establish Ubuntu Touch . first put TWRP , cleared everything . and only after cleaning installed Ubuntu Touch . Thank you all for the answers, I hope I have one problem with the installation"
Use twrp wipe everything then try the installer. The newest device I have is a OP3 so am not the ideal person to help on this. Though that had a similar issue with needing twrp to wipe, clear and format cache and data for the installer to work