Error on Collect startup ( persistent sessions exception )

Hello,

I am having problems starting up my Open Foris Collect installation.

After I start Collect and the Tomcat window appears I can see this exception.

(Note that I think I tried to start Collect without shutting it down first and I am using the latest version that was just updated)

SEVERE: IOException while loading persisted sessions: java.io.EOFException
java.io.EOFException
        at java.io.ObjectInputStream$PeekInputStream.readFully(Unknown Source)
        at java.io.ObjectInputStream$BlockDataInputStream.readShort(Unknown Sour
ce)
        at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
        at java.io.ObjectInputStream.<init>(Unknown Source)
        at org.apache.catalina.util.CustomObjectInputStream.<init>(CustomObjectI
nputStream.java:58)
        at org.apache.catalina.session.StandardManager.doLoad(StandardManager.ja
va:246)
        at org.apache.catalina.session.StandardManager.load(StandardManager.java
:204)
        at org.apache.catalina.session.StandardManager.startInternal(StandardMan
ager.java:491)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContex
t.java:5300)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:901)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:87
7)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)

        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:977)

        at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:
1655)
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

Mar 23, 2015 4:40:46 PM org.apache.catalina.session.StandardManager startInterna
l
SEVERE: Exception loading sessions from persistent storage
java.io.EOFException
        at java.io.ObjectInputStream$PeekInputStream.readFully(Unknown Source)
        at java.io.ObjectInputStream$BlockDataInputStream.readShort(Unknown Sour
ce)
        at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
        at java.io.ObjectInputStream.<init>(Unknown Source)
        at org.apache.catalina.util.CustomObjectInputStream.<init>(CustomObjectI
nputStream.java:58)
        at org.apache.catalina.session.StandardManager.doLoad(StandardManager.ja
va:246)
        at org.apache.catalina.session.StandardManager.load(StandardManager.java
:204)
        at org.apache.catalina.session.StandardManager.startInternal(StandardMan
ager.java:491)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContex
t.java:5300)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:901)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:87
7)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)

        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:977)

        at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:
1655)
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

Mar 23, 2015 4:40:46 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/collect] startup failed due to previous errors