Map Change Error @ Edana Sewers


New Adventurer
Dec 4, 2019
Hey guys! First time posting on here, but I've been playing MS:C for a really long time now; though on and off.
Random question about the Edana Sewers (I'm really sorry if this has already been asked, I tried looking back a decent amount before finally posting this thread.)

ANYWAYS, So I tried doing the Edana Sewers quest on US Server 1 FN, and when I went down to the sewers, game started to map change, it kicks me off and gives me the error "Warning: Could not open mastersword.wad"

Anyone know how to resolve this? I really love this game and want to see the game for what it truly is.