Has it been some time since you booted up Tree of Savior? You might want to consider doing that if you’re attached to your team name (aka the last name shared by every character on your account) as an upcoming team name reset has been announced, along with plans to open a new server.
This name reset only affects players who haven’t logged in for a year from January 28th, 2020 — if you’ve logged in at some point between then and January 28th, 2019, then you’re fine. The name reset is part of larger plans to open up pre-registration for new worlds. Details on these new worlds and the pre-registration event will be announced soon.
In the meantime, the game’s most recent update has closed a couple of seasonal events, put up some bundles for sale in the TP Shop, and made a couple of fixes.