He isn't arguing with you.
Uh yes he is, but whatever.
Two people suggested two good possible solutions (one being monitoring trace for oddities and the other being removing all add-ons to see if an add-on is causing the problem), and you chose to ignore them for no reason.
Wrong. One of them did not read OP which clearly stated that I can't afford to have trace on all the time. The other is not the problem, i'm pretty sure of that. I had perfectly good reasons.
I highly suggest you actually follow through with those suggestions.
And I highly suggest you read OP. I can't constantly run around for hours with trace mode on. The game would be unplayable and more than likely I will crash from the trace, which happens often when I try to do tasks with it on, such as starting servers.
You can definitely afford to disable add-ons. It's not like they're going to be permanently gone, just rename the Add-Ons folded "add-ons backup" or something and run Blockland again, and see if you still crash.
If I wasn't doing important stuff I could afford to disable client/server mods, but I can't. I'm hosting with mods that are required for what i'm doing. Renaming the addons folder will probably break the game, i'm sure.
If that doesn't work, turn trace on. Yes, it slows down your game, that's why it's off by default, but it's a useful debugging tool. Turn it on, play around with the game (even with lag), get a crash so we can look at logs.
How many times do I have to say this. I can't use trace because it lags me to death and half the time it ends up being the thing that crashes me, and considerably quickly sometimes too.