This is my projectx.log file from the last attempt I did. What I did:

1. Launch Spiral Knights
2. Open the Energy Depot
3. Choose Quit on the disconnected message


2012/05/27 16:19:35:296 INFO I$a.b: Logging to 'f:\steam\steamapps\common\spiral knights\.\projectx.log'.
2012/05/27 16:19:41:289 INFO I$a.b: Steam initialized.
2012/05/27 16:19:45:813 INFO I$a.b: Connecting [host=game.spiralknights.com/184.73.171.119, port=47624]
WARNING: Found unknown Windows version: Windows 7
Attempting to use default windows plug-in.
Loading: net.java.games.input.DirectAndRawInputEnvironmentPlugin
2012/05/27 16:19:46:464 INFO I$a.b: Datagram connection established [port=47624]
2012/05/27 16:19:54:837 WARNING I$a.b: Internal stream error, no class metadata [code=26415, ois=[hash=15297016, mappings=80, current=null, streamer=null]]
java.lang.Exception
at com.threerings.io.v.mZ(SourceFile:214)
at com.threerings.io.v.readObject(SourceFile:86)
at com.threerings.util.StreamableArrayList.readObject(SourceFile:75)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.threerings.io.Streamer$e.a(SourceFile:572)
at com.threerings.io.v.a(SourceFile:285)
at com.threerings.io.v.readObject(SourceFile:100)
at com.threerings.io.g.a(SourceFile:263)
at com.threerings.io.Streamer$d.a(SourceFile:393)
at com.threerings.io.v.a(SourceFile:285)
at com.threerings.io.v.readObject(SourceFile:100)
at com.threerings.io.b.j(SourceFile:701)
at com.threerings.io.b$v.k(SourceFile:437)
at com.threerings.io.f$b.a(SourceFile:192)
at com.threerings.io.Streamer$d.a(SourceFile:393)
at com.threerings.io.v.a(SourceFile:285)
at com.threerings.io.v.readObject(SourceFile:100)
at com.threerings.io.g.a(SourceFile:263)
at com.threerings.io.Streamer$d.a(SourceFile:393)
at com.threerings.io.v.a(SourceFile:285)
at com.threerings.io.v.readObject(SourceFile:100)
at com.threerings.presents.client.BlockingCommunicator.qh(SourceFile:498)
at com.threerings.presents.client.BlockingCommunicator$c.hS(SourceFile:699)
at com.samskivert.util.T.run(SourceFile:60)
2012/05/27 16:19:54:837 WARNING I$a.b: ObjectInputStream mappings [map=[null, [code=1, class=com.threerings.presents.net.SecureResponse], [code=2, class=com.threerings.presents.net.AuthResponseData], [code=3, class=com.threerings.presents.net.AuthResponse], [code=4, class=com.threerings.projectx.data.ProjectXAuthResponseData], [code=5, class=com.threerings.presents.net.BootstrapNotification], [code=6, class=com.threerings.projectx.data.ProjectXBootstrapData], [code=7, class=com.threerings.whirled.zone.data.ZoneMarshaller], [code=8, class=com.threerings.whirled.data.SceneMarshaller], [code=9, class=com.threerings.admin.data.AdminMarshaller], [code=10, class=com.threerings.projectx.admin.data.ProjectXAdminMarshaller], [code=11, class=com.threerings.crowd.chat.data.ChatMarshaller], [code=12, class=com.threerings.crowd.data.LocationMarshaller], [code=13, class=com.threerings.crowd.data.BodyMarshaller], [code=14, class=com.threerings.projectx.data.ProjectXSupportMarshaller], [code=15, class=com.threerings.projectx.data.KnightMarshaller], [code=16, class=com.threerings.projectx.uplink.data.UplinkMarshaller], [code=17, class=com.threerings.projectx.social.data.SocialMarshaller], [code=18, class=com.threerings.projectx.data.ProjectXZoneMarshaller], [code=19, class=com.threerings.projectx.guild.data.GuildMarshaller], [code=20, class=com.threerings.projectx.item.data.ItemMarshaller], [code=21, class=com.threerings.projectx.mission.data.MissionMarshaller], [code=22, class=com.threerings.projectx.social.data.FeedMarshaller], [code=23, class=com.threerings.projectx.partner.data.SteamMarshaller], [code=24, class=com.threerings.projectx.partner.data.KongregateMarshaller], [code=25, class=com.threerings.projectx.billing.data.BillingMarshaller], [code=26, class=com.threerings.projectx.data.EventLogMarshaller], [code=27, class=com.threerings.projectx.board.data.BoardMarshaller], [code=28, class=com.threerings.projectx.data.InvitationMarshaller], [code=29, class=com.threerings.projectx.auction.data.AuctionMarshaller], [code=30, class=com.threerings.projectx.pvp.data.PvpMarshaller], [code=31, class=com.threerings.projectx.reward.data.RedeemMarshaller], [code=32, class=com.threerings.presents.data.TimeBaseMarshaller], [code=33, class=com.threerings.presents.net.PongResponse], [code=34, class=com.threerings.presents.net.ObjectResponse], [code=35, class=com.threerings.projectx.data.PlayerObject], [code=36, class=com.threerings.util.Name], [code=37, class=com.threerings.presents.dobj.DSet], [code=38, class=com.threerings.projectx.data.ProjectXTokenRing], [code=39, class=com.threerings.projectx.data.Achievement], [code=40, class=com.threerings.projectx.data.Achievement$Type], [code=41, class=com.threerings.projectx.admin.data.Survey], [code=42, class=[Lcom.threerings.projectx.admin.data.Survey$Question;], [code=43, class=com.threerings.projectx.admin.data.Survey$Choice], [code=44, class=[Ljava.lang.String;], [code=45, class=[Lcom.threerings.projectx.data.AvailableKnight;], [code=46, class=com.threerings.projectx.data.AvailableKnight], [code=47, class=com.threerings.config.ConfigReference], [code=48, class=com.threerings.config.ArgumentMap], [code=49, class=java.lang.Integer], [code=50, class=java.lang.String], [code=51, class=com.threerings.projectx.data.PlayerObject$EquipPolicy], [code=52, class=com.threerings.presents.net.EventNotification], [code=53, class=com.threerings.presents.dobj.CompoundEvent], [code=54, class=com.threerings.util.StreamableArrayList], [code=55, class=com.threerings.presents.dobj.AttributeChangedEvent], [code=56, class=com.threerings.presents.dobj.EntryAddedEvent], [code=57, class=com.threerings.presents.client.InvocationReceiver$Registration], [code=58, class=java.lang.Boolean], [code=59, class=com.threerings.projectx.data.ServerObject], [code=60, class=com.threerings.projectx.town.data.TownSummary], [code=61, class=[Lcom.threerings.opengl.renderer.config.ColorizationConfig;], [code=62, class=com.threerings.opengl.renderer.config.ColorizationConfig$Normal], [code=63, class=com.threerings.projectx.dungeon.data.GateSummary], [code=64, class=[Lcom.threerings.projectx.dungeon.data.GateSummary$Wheel;], [code=65, class=com.threerings.projectx.dungeon.data.GateSummary$Constant], [code=66, class=[Lcom.threerings.projectx.dungeon.data.GateSummary$Wedge;], [code=67, class=com.threerings.projectx.dungeon.data.GateSummary$Level], [code=68, class=com.threerings.projectx.dungeon.data.DungeonCodes$LevelType], [code=69, class=com.threerings.projectx.dungeon.data.MissionGateSummary], [code=70, class=com.threerings.opengl.renderer.config.ColorizationConfig$CustomOffsets], [code=71, class=com.threerings.opengl.renderer.config.ColorizationConfig$Triplet], [code=72, class=com.threerings.projectx.dungeon.data.RotatingGateSummary], [code=73, class=com.threerings.projectx.dungeon.data.GateSummary$Random], [code=74, class=com.threerings.projectx.data.ServerObject$GateObjectInfo], [code=75, class=com.threerings.presents.dobj.InvocationResponseEvent], [code=76, class=com.threerings.billing.data.BillingInfo], [code=77, class=com.threerings.billing.data.CoinPackage], [code=78, class=com.threerings.billing.data.PromoLabel], [code=79, class=com.threerings.billing.data.Promotion]]]
2012/05/27 16:19:54:837 INFO I$a.b: Connection failed
java.io.IOException: Failure reading streamable field [class=com.threerings.presents.net.EventNotification, field=_event, error=java.io.IOException: Failure reading streamable field [class=com.threerings.presents.dobj.InvocationResponseEvent, field=_args, error=java.io.IOException: Failure reading streamable field [class=com.threerings.billing.data.BillingInfo, field=promos, error=java.io.IOException: Failure invoking streamable reader [class=com.threerings.util.StreamableArrayList]]]]
at com.threerings.io.Streamer$d.a(SourceFile:401)
at com.threerings.io.v.a(SourceFile:285)
at com.threerings.io.v.readObject(SourceFile:100)
at com.threerings.presents.client.BlockingCommunicator.qh(SourceFile:498)
at com.threerings.presents.client.BlockingCommunicator$c.hS(SourceFile:699)
at com.samskivert.util.T.run(SourceFile:60)
Caused by: java.io.IOException: Failure reading streamable field [class=com.threerings.presents.dobj.InvocationResponseEvent, field=_args, error=java.io.IOException: Failure reading streamable field [class=com.threerings.billing.data.BillingInfo, field=promos, error=java.io.IOException: Failure invoking streamable reader [class=com.threerings.util.StreamableArrayList]]]
at com.threerings.io.Streamer$d.a(SourceFile:401)
at com.threerings.io.v.a(SourceFile:285)
at com.threerings.io.v.readObject(SourceFile:100)
at com.threerings.io.g.a(SourceFile:263)
at com.threerings.io.Streamer$d.a(SourceFile:393)
... 5 more
Caused by: java.io.IOException: Failure reading streamable field [class=com.threerings.billing.data.BillingInfo, field=promos, error=java.io.IOException: Failure invoking streamable reader [class=com.threerings.util.StreamableArrayList]]
at com.threerings.io.Streamer$d.a(SourceFile:401)
at com.threerings.io.v.a(SourceFile:285)
at com.threerings.io.v.readObject(SourceFile:100)
at com.threerings.io.b.j(SourceFile:701)
at com.threerings.io.b$v.k(SourceFile:437)
at com.threerings.io.f$b.a(SourceFile:192)
at com.threerings.io.Streamer$d.a(SourceFile:393)
... 9 more
Caused by: java.io.IOException: Failure invoking streamable reader [class=com.threerings.util.StreamableArrayList]
at com.threerings.io.Streamer$e.a(SourceFile:583)
at com.threerings.io.v.a(SourceFile:285)
at com.threerings.io.v.readObject(SourceFile:100)
at com.threerings.io.g.a(SourceFile:263)
at com.threerings.io.Streamer$d.a(SourceFile:393)
... 15 more
Caused by: java.lang.RuntimeException: Read object code for which we have no registered class metadata [code=26415]
at com.threerings.io.v.mZ(SourceFile:219)
at com.threerings.io.v.readObject(SourceFile:86)
at com.threerings.util.StreamableArrayList.readObject(SourceFile:75)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.threerings.io.Streamer$e.a(SourceFile:572)
... 19 more