SVN Mirror Add-on stop working with Bitbucket Server 6.6.1

Hello,

SVN Mirror Add-on 4.0.3 no longer works with Bitbucket 6.6.1 (works with 6.6.0). There is an exception when loading add-on:

[INFO] Caused by: org.osgi.framework.BundleException: Unable to resolve org.tmatesoft.subgit.stash-svn-importer [127](R 127.0): missing requirement [org.tmatesoft.subgit.stash-svn-importer [127](R 127.0)] osgi.wiring.package; (&(osgi.wiring
.package=com.atlassian.bitbucket.dmz.server)(version>=6.6.1)(version<=6.6.1)) Unresolved requirements: [[org.tmatesoft.subgit.stash-svn-importer [127](R 127.0)] osgi.wiring.package; (&(osgi.wiring.package=com.atlassian.bitbucket.dmz.server)
(version>=6.6.1)(version<=6.6.1))]
[INFO] at org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:4149)
[INFO] ... 30 common frames omitted
[INFO] 2019-09-17 14:43:04,474 ERROR [spring-startup] c.a.plugin.manager.PluginEnabler Unable to enable plugin org.tmatesoft.subgit.stash-svn-importer
[INFO] com.atlassian.plugin.osgi.container.OsgiContainerException: Cannot start plugin: org.tmatesoft.subgit.stash-svn-importer
[INFO] at com.atlassian.plugin.osgi.factory.OsgiPlugin.enableInternal(OsgiPlugin.java:424)
[INFO] at com.atlassian.plugin.impl.AbstractPlugin.enable(AbstractPlugin.java:252)
[INFO] at com.atlassian.plugin.manager.PluginEnabler.actualEnable(PluginEnabler.java:120)
[INFO] at com.atlassian.plugin.manager.PluginEnabler.enable(PluginEnabler.java:97)
[INFO] at com.atlassian.plugin.manager.DefaultPluginManager.lambda$enableDependentPlugins$22(DefaultPluginManager.java:1246)
[INFO] at com.atlassian.plugin.manager.PluginTransactionContext.wrap(PluginTransactionContext.java:63)
[INFO] at com.atlassian.plugin.manager.DefaultPluginManager.enableDependentPlugins(DefaultPluginManager.java:1230)
[INFO] at com.atlassian.plugin.manager.DefaultPluginManager.lambda$addPlugins$20(DefaultPluginManager.java:1215)
[INFO] at com.atlassian.plugin.manager.PluginTransactionContext.wrap(PluginTransactionContext.java:63)
[INFO] at com.atlassian.plugin.manager.DefaultPluginManager.addPlugins(DefaultPluginManager.java:1115)
[INFO] at com.atlassian.stash.internal.plugin.StashPluginManager.addPlugins(StashPluginManager.java:79)
[INFO] at com.atlassian.plugin.manager.DefaultPluginManager.lambda$earlyStartup$3(DefaultPluginManager.java:588)
[INFO] at com.atlassian.plugin.manager.PluginTransactionContext.wrap(PluginTransactionContext.java:63)
[INFO] at com.atlassian.plugin.manager.DefaultPluginManager.earlyStartup(DefaultPluginManager.java:523)
[INFO] at com.atlassian.stash.internal.plugin.StashPluginManager.lambda$earlyStartup$0(StashPluginManager.java:54)
[INFO] at com.atlassian.stash.internal.plugin.PluginUpgradeHelper.withUpgrade(PluginUpgradeHelper.java:76)
[INFO] at com.atlassian.stash.internal.plugin.StashPluginManager.earlyStartup(StashPluginManager.java:54)
[INFO] at com.atlassian.plugin.manager.DefaultPluginManager.lambda$init$2(DefaultPluginManager.java:515)
[INFO] at com.atlassian.plugin.manager.PluginTransactionContext.wrap(PluginTransactionContext.java:63)
[INFO] at com.atlassian.plugin.manager.DefaultPluginManager.init(DefaultPluginManager.java:514)
[INFO] at com.atlassian.stash.internal.plugin.SpringPluginSystemLifecycle.start(SpringPluginSystemLifecycle.java:35)
[INFO] at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182)
[INFO] at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:53)
[INFO] at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:360)
[INFO] at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:158)
[INFO] at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:122)
[INFO] at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:893)
[INFO] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552)
[INFO] at javax.servlet.GenericServlet.init(GenericServlet.java:158)
[INFO] at java.lang.Thread.run(Thread.java:748)
[INFO] ... 8 frames trimmed
[INFO] Caused by: org.osgi.framework.BundleException: Unable to resolve org.tmatesoft.subgit.stash-svn-importer [127](R 127.0): missing requirement [org.tmatesoft.subgit.stash-svn-importer [127](R 127.0)] osgi.wiring.package; (&(osgi.wiring
.package=com.atlassian.bitbucket.dmz.server)(version>=6.6.1)(version<=6.6.1)) Unresolved requirements: [[org.tmatesoft.subgit.stash-svn-importer [127](R 127.0)] osgi.wiring.package; (&(osgi.wiring.package=com.atlassian.bitbucket.dmz.server)
(version>=6.6.1)(version<=6.6.1))]
[INFO] at org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:4149)
[INFO] ... 30 common frames omitted

Please advise on how to fix this issue. Thanks!