good work on getting it built and mostly working.
First off, the screen dot should be in the bottom right corner. You can see that e.g. on p.2 of the user manual. Does that look the same as yours?
Secondly, what the Device page is telling you is that you are connected to the bootloader:
CONNECTED TO: OWL Lich Boot v21.0. Try clicking 'Reset Device' to exit the bootloader, and enter the main firmware. If you keep getting back to the bootloader, then something is causing a firmware reset. Look out for error messages on the web page. Otherwise you should be all good to go.
Error 0x70 Preventing reset program from starting just tells you that the firmware has decided not to try to start the same patch again, after a reset. It could be that the patch is corrupt or invalid, or that the firmware has reset for other reasons.