Gerrit replication hangs indefinitely - gerrit

Question

I'm having trouble with Gerrit replication plugin. I'm trying to replicate repository to Gitlab over HTTPS. Most important configuration:
etc/replication.config
[gerrit]
replicateOnStartup = true
[remote "gitlab-mirror"]
url = https://<name.surname>:<password>#gitlab.domain/<Name.Surname>/${name}.git
push = +refs/heads/*:refs/heads/*
push = +refs/tags/*:refs/tags/*
mirror = true
projects = hello-world
rescheduleDelay = 15
Repository on Gitlab side does exists under: https://gitlab.domain/<Name.Surname>/hello-world
I even cloned repository from Gerrit, add another remote to gitlab called mirror and pushed to it without hassle:
git clone ssh://admin#gerrit.domain:29418/hello-world
git remote add mirror https://<name.surname>:<password>#gitlab.domain/<Name.Surname>/hello-world.git
git push -u mirror --all
I'm scheduling replication as follows:
ssh -p 29418 gerrit.domain replication start
Which produce following log:
gerrit | [2020-03-23 22:01:40,019 +0000] 6c533415 [sshd-SshDaemon[33060020](port=22)-nio2-thread-1] admin a/1000000 LOGIN FROM 172.64.1.1
gerrit | [2020-03-23 22:01:40,071 +0000] 6c533415 [SSH replication start (admin)] admin a/1000000 replication.start 7ms 1ms 0
gerrit | [2020-03-23 22:01:40,102 +0000] 6c533415 [sshd-SshDaemon[33060020](port=22)-nio2-thread-2] admin a/1000000 LOGOUT
But then when process take place I got following Stack Trace:
gerrit | [2020-03-23 22:02:04,660] [ReplicateTo-gitlab-mirror-1] ERROR com.googlesource.gerrit.plugins.replication.ReplicationTasksStorage : Error while deleting task d44f53430eda0b204ca13da6aab17c2173531c94
gerrit | java.nio.file.NoSuchFileException: /srv/gerrit/data/replication/ref-updates/running/d44f53430eda0b204ca13da6aab17c2173531c94
gerrit | at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
gerrit | at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
gerrit | at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
gerrit | at sun.nio.fs.UnixFileSystemProvider.implDelete(UnixFileSystemProvider.java:244)
gerrit | at sun.nio.fs.AbstractFileSystemProvider.delete(AbstractFileSystemProvider.java:103)
gerrit | at java.nio.file.Files.delete(Files.java:1126)
gerrit | at com.googlesource.gerrit.plugins.replication.ReplicationTasksStorage$Task.finish(ReplicationTasksStorage.java:232)
gerrit | at com.googlesource.gerrit.plugins.replication.ReplicationTasksStorage.finish(ReplicationTasksStorage.java:130)
gerrit | at com.googlesource.gerrit.plugins.replication.Destination.notifyFinished(Destination.java:574)
gerrit | at com.googlesource.gerrit.plugins.replication.PushOne.runPushOperation(PushOne.java:413)
gerrit | at com.googlesource.gerrit.plugins.replication.PushOne.lambda$run$0(PushOne.java:300)
gerrit | at com.google.gerrit.server.util.RequestScopePropagator.lambda$cleanup$1(RequestScopePropagator.java:182)
gerrit | at com.google.gerrit.server.util.RequestScopePropagator.lambda$context$0(RequestScopePropagator.java:170)
gerrit | at com.google.gerrit.server.git.PerThreadRequestScope$Propagator.lambda$scope$0(PerThreadRequestScope.java:70)
gerrit | at com.googlesource.gerrit.plugins.replication.PushOne.run(PushOne.java:303)
gerrit | at com.google.gerrit.server.logging.LoggingContextAwareRunnable.run(LoggingContextAwareRunnable.java:87)
gerrit | at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
gerrit | at java.util.concurrent.FutureTask.run(FutureTask.java:266)
gerrit | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
gerrit | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
gerrit | at com.google.gerrit.server.git.WorkQueue$Task.run(WorkQueue.java:610)
gerrit | at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
gerrit | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
gerrit | at java.lang.Thread.run(Thread.java:748)
This is how data directory for replication looks like (I think whole time):
gerrit:/srv/gerrit$ find data/replication/
data/replication/
data/replication/ref-updates
data/replication/ref-updates/running
data/replication/ref-updates/building
data/replication/ref-updates/waiting
data/replication/ref-updates/waiting/50d5b9f61203cdd9223f21c21de7174f58a89bd3
data/replication/ref-updates/waiting/d44f53430eda0b204ca13da6aab17c2173531c94
Yep Gerrit tries to delete task from running (I have no idea why?) but task is in waiting. Gitlab repository does not get changes which is biggest problem.
I also tried queue replication event as follows, but that blocks indefinitely, until CTRL+C:
ssh -p 29418 gerrit.domain replication start --wait
Any idea what I'm missing or what more I could look for?