Homekit working, but fills logfile up with tons of errors

Luckily, my Homekit integration works. But when I look in the logfile, it looks scary.
This kind of message seems to come along for ever accessory defined:

23:55:35.736 [ERROR] [org.openhab.io.homekit              ] - FrameworkEvent ERROR - org.openhab.io.homekit
java.io.IOException: Exception in opening zip file: /var/lib/openhab2/cache/org.eclipse.osgi/259/0/.cp/lib/org.zeromq.curve25519-java-0.1.0.jar
        at org.eclipse.osgi.framework.util.SecureAction.getZipFile(SecureAction.java:305)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.storage.bundlefile.ZipBundleFile.basicOpen(ZipBundleFile.java:85)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.storage.bundlefile.ZipBundleFile.getZipFile(ZipBundleFile.java:98)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.storage.bundlefile.ZipBundleFile.checkedOpen(ZipBundleFile.java:65)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.storage.bundlefile.ZipBundleFile.getEntry(ZipBundleFile.java:232)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.storage.bundlefile.BundleFile.getResourceURL(BundleFile.java:136)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findResourceImpl(ClasspathManager.java:420)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalResources(ClasspathManager.java:397)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalResources(ModuleClassLoader.java:320)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.internal.loader.BundleLoader.findLocalResources(BundleLoader.java:813)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.internal.loader.BundleLoader.findResources(BundleLoader.java:674)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.internal.loader.ModuleClassLoader.getResources(ModuleClassLoader.java:230)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at org.eclipse.osgi.internal.framework.ContextFinder.findResources(ContextFinder.java:165)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        at java.lang.ClassLoader.getResources(ClassLoader.java:1142)[:1.8.0_131]
        at java.util.ServiceLoader$LazyIterator.hasNextService(ServiceLoader.java:348)[:1.8.0_131]
        at java.util.ServiceLoader$LazyIterator.hasNext(ServiceLoader.java:393)[:1.8.0_131]
        at java.util.ServiceLoader$1.hasNext(ServiceLoader.java:474)[:1.8.0_131]
        at javax.json.spi.JsonProvider.provider(JsonProvider.java:89)
        at javax.json.Json.createWriter(Json.java:198)
        at com.beowulfe.hap.impl.json.EventController.getMessage(EventController.java:27)
        at com.beowulfe.hap.impl.connections.SubscriptionManager.publish(SubscriptionManager.java:83)
        at com.beowulfe.hap.impl.connections.SubscriptionManager.lambda$addSubscription$30(SubscriptionManager.java:31)
        at org.openhab.io.homekit.internal.HomekitAccessoryUpdater.lambda$2(HomekitAccessoryUpdater.java:53)
        at org.eclipse.smarthome.core.items.GenericItem$1.run(GenericItem.java:241)[99:org.eclipse.smarthome.core:0.9.0.b4]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_131]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_131]
        at java.lang.Thread.run(Thread.java:748)[:1.8.0_131]
Caused by: java.io.FileNotFoundException: /var/lib/openhab2/cache/org.eclipse.osgi/259/0/.cp/lib/org.zeromq.curve25519-java-0.1.0.jar (Datei oder Verzeichnis nicht gefunden)
        at java.util.zip.ZipFile.open(Native Method)[:1.8.0_131]
        at java.util.zip.ZipFile.<init>(ZipFile.java:219)[:1.8.0_131]
        at java.util.zip.ZipFile.<init>(ZipFile.java:149)[:1.8.0_131]
        at java.util.zip.ZipFile.<init>(ZipFile.java:163)[:1.8.0_131]
        at org.eclipse.osgi.framework.util.SecureAction.getZipFile(SecureAction.java:288)[org.eclipse.osgi-3.10.101.v20150820-1432.jar:]
        ... 26 more

Running openHABianPi, build 7.05.170509

This is a new behaviour after the last update - can’t remember to see such errors before.

Cheers, Boby

I have some error. How to repaire?