[HELP]Error at l2jconfig

[kagkouras]

hi guys yesterday i make an update to my server at last revision (freya) so i made update from repository like always the pack was ok and here comes the problems,when i build it shows me at the consone a weird error that never show me again the error is exec and when i click redirects me to a site that says that i need to downgrade my version.anyways i tryed to ignore it and continue the build when build finished and i extract the files when i go to gameserver and try to open l2jconfig to start my setups the new error comes up: could not find the main class com.l2jserver.configurator.ConfigUserInterface. Program will exit.

What the hell is going wrong i made the steps like all times 

[DemoniK®]

Maybe they update and Datapack SVN . Not only the Gameserver.

[kagkouras]

no dude always  when i try to update i update gameserver and datapack i do again the same like always but i cant undertand why this error comes up to me and make me crazy cause at 30 april i have to open my server and must be ready