That calibre debug log is strange. It does match the format of a standard calibre debug log. More important, it is missing the startup messages from the wireless device driver and it does not contain any wireless device log startup or connection messages. Finally, it says that the calibre you are running is some 50 versions (approximately 15 to 18 months) older than the current calibre release.
Is this the verbatim log or did you edit it?
Where did you get the calibre release? Is it a "real" calibre release, by that I mean one made by Kovid and downloaded from
https://calibre-ebook.com/, or is it a "distro" calibre release made by some third party? If the latter then all bets are off. Third-party calibre releases commonly break fundamental things.
I also note that you have installed the iOS plugin. I have no idea whether it works with the calibre wireless device. The same question exists for the Marvin plugin