Cant recieve messages but could send messages from im gateway using gtalk

since upgrading to server ver 3.5.1 i have problems recieving messages to gtalk but i could send i actually recieve the first few messages after restarting the client but it stops after a few messages

attached is the error log in openfire

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2008.05.07 14:06:06 [org.jivesoftware.openfire.container.PluginManager.loadPlugin(PluginManager.jav a:507)

] Error loading plugin: C:\Program Files (x86)\Wildfire\plugins\broadcast

java.lang.NoClassDefFoundError: org/jivesoftware/wildfire/container/Plugin

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClass(Unknown Source)

at java.security.SecureClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.access$000(Unknown Source)

at java.net.URLClassLoader$1.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at org.jivesoftware.openfire.container.PluginManager.loadPlugin(PluginManager.java :385)

at org.jivesoftware.openfire.container.PluginManager.access$300(PluginManager.java :47)

at org.jivesoftware.openfire.container.PluginManager$PluginMonitor.run(PluginManag er.java:1014)

at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)

at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

at java.util.concurrent.FutureTask.runAndReset(Unknown Source)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101 (Unknown Source)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodi c(Unknown Source)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknow n Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

thanks in advance