Same thing happened to me within 5 seconds of Bifrost teleporting in Shushire.
US WEST
Enviska
Char: xoxogossipgirl 
I have the same issue as well and same error code. It happened right as I was entering an instance and can’t log back in with my main character, but alts just fine.
Server: Enviska (US West)
Char: Nymphydora
Same thing here attempting to enter Niheltalop’s Thoughts
Region: US - West
Server : Enviska
Char : Cwab
Same Issue. Bifrost into the Frozen sea and disconnected
Region: US - West
Server : Enviska
Char : Priingles
I have the same issue with my Main and Alt. Went into Realm of Elements dungeon solo and caused both chars to get error.
US West
Server: Enviska
Char:
Saltysenpai
Saltyswordsman
This is incorrect. This is a server issue.
Im having the same issue as well, tried to do a solo dungeon in Yorn and this is what I got.
US West
Server: ENVISKA
Character: Aeonna
Same issue, chaos dungeon:
Region: US - West
Server: Akkan
Char: Galewind
*Update: appears to be resolved
Yea, from the looks of it, most people with the same complaint are pretty much on ENVISKA
This is a enviska-wide issue. I also cant login to my main character since it crashed in an instance.
Region: US - West
Server : Enviska
Char : Redwood
US West Enviska
char: Drowninpond
Server takes a crap and we cant log in.
“Lets see whats wrong with your PC”
xD
Same issue with other here. Main character account stuck on logon screen with g0x9-spelpwp1p2nt error then booted me out of the game. I have to restart the game every time so annoying. Please fix this!
US West Enviska
Char: Mcdaddy
I can still logon and play my alt though.
same issue Error g0x9-spelpwp1p2nt
US WEST Enviska
Char: Neeteeroo
Char: Blurredclip
Location: Luterra
Region: US - West
Server : Enviska
Char : Arabiki and Shimoku
Arabiki was entering a Scenario/Solo Instance
Shimoku was from character selection screen
When I attempt to swap to Arabiki I see this screen
Which appears to be some weird between world issue but I have no idea how this is possible.
Same issue for my main character
Region: US - West
Server: Enviska
Character: Iite
Location: The Metus Islands
Region: US - West
Server : Enviska
Char : Dàedalus
Entered dungeon and received error message cannot connect to the server. Exiting the game G0x9-SPELPWP1P2NT
I am able to enter alt characters this is just the one I cant get into. Please assist, thank you
Same problem
NA west
Enviska
Zhill
Same issue.
Location Hypnos island → got moved to prideholm by live support and same issue.
NA west
Enviska
Athanisa
Same issue here tried to Bifrost to shushire and got that code!
Server:NA West Enviska
Character name: miyamotoemiko