Game crashed while loading Ancient Sewers, if I select the "Continue" option it's just a black screen for about half a minute until the exception shows up again, the log is below

LevelGen: id=SewerDepths seed=799960 e=Seed error

Called from level.LevelGen.generate (level/LevelGen.hx line 70)
Called from pr.Game.loadMainLevel (pr/Game.hx line 618)
Called from cine.LevelTransition.loadNewLevel (cine/LevelTransition.hx line 101)
Called from cine.$LevelTransition.__constructor__ (cine/LevelTransition.hx line 92)
Called from cine.$LevelTransition.goto (cine/LevelTransition.hx line 49)
Called from pr.$Game.__constructor__ (pr/Game.hx line 117)
Called from User.activateMainGame (User.hx line 606)
Called from Main.getGame (Main.hx line 399)
Called from local function #5599 (Main.hx line 314)
Called from local function #5614 (Main.hx line 480)
Called from mt.Delayer.update (mt/Delayer.hx line 106)
Called from mt.$Process._update (mt/Process.hx line 257)
Called from mt.$Process.updateAll (mt/Process.hx line 223)
Called from Boot.update (Boot.hx line 572)
Called from hxd.App.mainLoop (hxd/App.hx line 161)
Called from Boot.mainLoop (Boot.hx line 577)
Called from hxd.$System.mainLoop (hxd/System.hl.hx line 70)
Called from hxd.$System.runMainLoop (hxd/System.hl.hx line 127)
Called from hxd.$System.runMainLoop (hxd/System.hl.hx line 123)
Called from local function #16414 (C:\Projects\haxeTools\std/haxe/Timer.hx line 140)
Called from local function #16415 (C:\Projects\haxeTools\std/haxe/Timer.hx line 74)
Called from haxe.$MainLoop.tick (C:\Projects\haxeTools\std/haxe/MainLoop.hx line 166)
Called from haxe.$EntryPoint.processEvents (C:\Projects\haxeTools\std/haxe/EntryPoint.hx line 104)
Called from haxe.$EntryPoint.run (C:\Projects\haxeTools\std/haxe/EntryPoint.hx line 136)

Edit: Forgot, I'm running the latest GoG version so 1.4.11