Thanks everyone!
Doesn't deserve a whole dev log for this, but we've most likely indentified the cause of the Connection Lost error that causes you to not be able to login for a long time. It should be fixed within the next few days.
Also, we know about Flicker and Flicker-type jutsu not teleporting you behind the player instead of the front if the front is blocked. Will be fixed together as well!
We just want to keep the server online to see how long it can go, if it goes beyond a week, we can conclude that it's truly stable!