Hello David.
Well, that is definitely an interesting bug.
As Champions League Group Stage has already played 6 matches and the Europa League Group Stage has played 0 matches, in week 43, you have to wonder how long the calendar will last. Hopefully those games will be played or else the Super Cup won't be played or it will at least give an error. Hmm. I guess I wonder as you are playing bygfoot version 2.3.4, how many teams are in the group stages of the Champions League and the Europa League? If I recall correctly, there are 8 groups in Champions League for 32 teams and 12 groups in Europa League for 48 teams.
Now although I'm not really responding about the bug in the calendar, this bug truly is an interesting bug, I'm writing about your screenshot of your team. Now that looks interesting to me. After some of the names, there are names within brackets, like Bayern, Paderborn, and Academy. Are these clues as to where these players came from? Perhaps those names can imply that those players were acquired from the transfer list? Perhaps "Academy" can imply that those related players came from your youth academy? If so, congrats on the Etals (estimated talent) of that goalie and midfielder.
I wonder if this is a feature of version 2.3.4 and is it an item to select or is it a default item, that these names are included? Either way, it does look interesting and likely something I'd like to see too, when I think of it. Although the way I play, there will be a time when likely half or more of my team players are from my academy. Oh well.
Now as for this bug, I appreciate you posting it here as this way, we can all see it, but you may have to also post about it on gitlab or such, the site that tstellar is using for hosting of bygfoot 2.3.4, so that he can account for it and work it out there and then follow-up with a fix. I guess you can post about it here first and then on the gitlab site, link to the post here on this site. Myself, I haven't played bigfoot in awhile and still use version 2.3.2 as that's what's available in the repositories. So yeah, I haven't upgraded yet.
But eventually, I will. For now, I can wait.
Till then,
will aka will_the_canuck
PS - I guess the bigger question then is although it is showing that you are in week 44 round 1, and that your next match is in week 43 round 2, when you do hit the "bus" or "next match/week" button, what happens? Do you end up playing the Europa League match or do you play against a different team, like a league match? I'm curious as to what happens next. I don't believe the game will crash as tstellar did talk about testing the game and the results came back positive. Though how long things may take, that I can't say.