Log files at
https://openphdguiding.org/logs/dl/PHD2_logs_6tAh.zip
No installation of PHP2 has worked for me with camera QHY5III585M. I tried PHP2 2.6.14 and 2.6.13. QHY driver tried was the latest 251203 after first trying the most recent QHY allinone installation.
When I use the profile wizard specifying qhy as the camera or if I just try to specify qhy, the phd2 program immediately crashes: disappears from screen with no message or anything.
I've repeated this a number of times, completely uninstalling driver and phd2 each time.
Camera works with other apps like firecapture and QHY's EZCAP