Error opening the studio | Bonitasoft Community

Hello,

After exporting diagrams of the community version, I can not open the studio anymore. here is the message.
Ps: I am novice and french, excuse my english.
Thank you in advance.

!SESSION 2019-01-08 14:17:59.881 -----------------------------------------------
eclipse.buildId=7.8.0.
java.version=1.8.0_112
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=fr
Framework arguments: --launcher.XXMaxPermSize512m
Command-line arguments: -os win32 -ws win32 -arch x86_64 --launcher.XXMaxPermSize512m

!ENTRY org.eclipse.osgi 4 0 2019-01-08 14:18:03.200
!MESSAGE Une erreur s'est produite lors de l'activation automatique du bundle org.eclipse.core.resources (206).
!STACK 0
org.osgi.framework.BundleException: Anomalie dans org.eclipse.core.resources.ResourcesPlugin.start() du paquet org.eclipse.core.resources.
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:800)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:729)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:933)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:309)
at org.eclipse.osgi.container.Module.doStart(Module.java:581)
at org.eclipse.osgi.container.Module.start(Module.java:449)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:468)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:103)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:529)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:328)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:368)
at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:442)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:387)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.bonitasoft.studio.application.contribution.UpdateRSSContribution$UpdateRSSThread.run(UpdateRSSContribution.java:69)
Caused by: java.lang.IllegalStateException: The instance data location has not been specified yet.
at org.eclipse.core.internal.runtime.DataArea.assertLocationInitialized(DataArea.java:54)
at org.eclipse.core.internal.runtime.DataArea.getStateLocation(DataArea.java:124)
at org.eclipse.core.internal.runtime.InternalPlatform.getStateLocation(InternalPlatform.java:539)
at org.eclipse.core.runtime.Plugin.getStateLocation(Plugin.java:289)
at org.eclipse.core.internal.resources.LocalMetaArea.(LocalMetaArea.java:59)
at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:459)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:779)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:1)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:772)
... 17 more
Root exception:
java.lang.IllegalStateException: The instance data location has not been specified yet.
at org.eclipse.core.internal.runtime.DataArea.assertLocationInitialized(DataArea.java:54)
at org.eclipse.core.internal.runtime.DataArea.getStateLocation(DataArea.java:124)
at org.eclipse.core.internal.runtime.InternalPlatform.getStateLocation(InternalPlatform.java:539)
at org.eclipse.core.runtime.Plugin.getStateLocation(Plugin.java:289)
at org.eclipse.core.internal.resources.LocalMetaArea.(LocalMetaArea.java:59)
at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:459)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:779)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:1)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:772)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:729)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:933)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:309)
at org.eclipse.osgi.container.Module.doStart(Module.java:581)
at org.eclipse.osgi.container.Module.start(Module.java:449)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:468)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:103)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:529)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:328)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:368)
at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:442)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:387)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.bonitasoft.studio.application.contribution.UpdateRSSContribution$UpdateRSSThread.run(UpdateRSSContribution.java:69)

!ENTRY org.eclipse.osgi.compatibility.state.nl_es 2 0 2019-01-08 14:18:03.381
!MESSAGE Impossible de résoudre le module :org.eclipse.osgi.compatibility.state.nl_es [671]
Exigence non résolue :Fragment-Host: org.eclipse.osgi.compatibility.state
Exigence non résolue :Fragment-Host: org.eclipse.osgi.compatibility.state

!ENTRY org.eclipse.jdt.compiler.tool.nl_ja 2 0 2019-01-08 14:18:03.392
!MESSAGE Impossible de résoudre le module :org.eclipse.jdt.compiler.tool.nl_ja [559]
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.tool
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.tool

!ENTRY org.eclipse.jdt.compiler.apt.nl_ja 2 0 2019-01-08 14:18:03.402
!MESSAGE Impossible de résoudre le module :org.eclipse.jdt.compiler.apt.nl_ja [555]
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.apt
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.apt

!ENTRY org.eclipse.jdt.compiler.apt.nl_fr 2 0 2019-01-08 14:18:03.413
!MESSAGE Impossible de résoudre le module :org.eclipse.jdt.compiler.apt.nl_fr [554]
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.apt
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.apt

!ENTRY org.eclipse.jdt.compiler.tool.nl_es 2 0 2019-01-08 14:18:03.424
!MESSAGE Impossible de résoudre le module :org.eclipse.jdt.compiler.tool.nl_es [557]
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.tool
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.tool

!ENTRY org.eclipse.osgi.compatibility.state.nl_fr 2 0 2019-01-08 14:18:03.434
!MESSAGE Impossible de résoudre le module :org.eclipse.osgi.compatibility.state.nl_fr [672]
Exigence non résolue :Fragment-Host: org.eclipse.osgi.compatibility.state
Exigence non résolue :Fragment-Host: org.eclipse.osgi.compatibility.state

!ENTRY org.eclipse.jdt.compiler.apt.nl_es 2 0 2019-01-08 14:18:03.444
!MESSAGE Impossible de résoudre le module :org.eclipse.jdt.compiler.apt.nl_es [553]
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.apt
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.apt

!ENTRY org.eclipse.jdt.compiler.tool.nl_fr 2 0 2019-01-08 14:18:03.453
!MESSAGE Impossible de résoudre le module :org.eclipse.jdt.compiler.tool.nl_fr [558]
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.tool
Exigence non résolue :Fragment-Host: org.eclipse.jdt.compiler.tool

!ENTRY org.eclipse.osgi.compatibility.state.nl_ja 2 0 2019-01-08 14:18:03.463
!MESSAGE Impossible de résoudre le module :org.eclipse.osgi.compatibility.state.nl_ja [673]
Exigence non résolue :Fragment-Host: org.eclipse.osgi.compatibility.state
Exigence non résolue :Fragment-Host: org.eclipse.osgi.compatibility.state

!ENTRY org.eclipse.osgi 4 0 2019-01-08 14:18:03.483
!MESSAGE Erreur liée à l'application
!STACK 1
org.eclipse.e4.core.di.InjectionException: Unable to process "BonitaStudioWorkbenchAdvisor.repositoryAccessor": no actual value was found for the argument "RepositoryAccessor".
at org.eclipse.e4.core.internal.di.InjectorImpl.reportUnresolvedArgument(InjectorImpl.java:476)
at org.eclipse.e4.core.internal.di.InjectorImpl.resolveRequestorArgs(InjectorImpl.java:467)
at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:113)
at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:399)
at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:318)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:162)
at org.bonitasoft.studio.application.BonitaStudioApplication.createWorkbenchAdvisor(BonitaStudioApplication.java:145)
at org.bonitasoft.studio.application.BonitaStudioApplication.createAndRunWorkbench(BonitaStudioApplication.java:134)
at org.bonitasoft.studio.application.BonitaStudioApplication.start(BonitaStudioApplication.java:96)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)