Maven project TextGrid Aggregator Service

12:26:11 ace/Aggregator # timeout=10
12:26:11 Fetching upstream changes from git@git.projects.gwdg.de:dariah-de/tg/textgrid-services/aggregator.git
12:26:11  > /usr/bin/git --version # timeout=10
12:26:11  > git --version # 'git version 2.20.1'
12:26:11 using GIT_SSH to set credentials git for projects.gwdg.de
12:26:11  > /usr/bin/git fetch --tags --force --progress -- git@git.projects.gwdg.de:dariah-de/tg/textgrid-services/aggregator.git +refs/heads/*:refs/remotes/origin/* # timeout=10
12:26:11 ERROR: Error cloning remote repo 'origin'
12:26:11 hudson.plugins.git.GitException: Command "/usr/bin/git fetch --tags --force --progress -- git@git.projects.gwdg.de:dariah-de/tg/textgrid-services/aggregator.git +refs/heads/*:refs/remotes/origin/*" returned status code 128:
12:26:11 stdout: 
12:26:11 stderr: ssh: connect to host git.projects.gwdg.de port 22: Connection timed out
12:26:11 fatal: Could not read from remote repository.
12:26:11 
12:26:11 Please make sure you have the correct access rights
12:28:21 and the repository exists.
12:28:21 
12:28:21 	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2671)
12:28:21 	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:2096)
12:28:21 	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$500(CliGitAPIImpl.java:84)
12:28:21 	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:618)
12:28:21 	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$2.execute(CliGitAPIImpl.java:847)
12:28:21 	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$GitCommandMasterToSlaveCallable.call(RemoteGitImpl.java:158)
12:28:21 	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$GitCommandMasterToSlaveCallable.call(RemoteGitImpl.java:151)
12:28:21 	at hudson.remoting.UserRequest.perform(UserRequest.java:211)
12:28:21 	at hudson.remoting.UserRequest.perform(UserRequest.java:54)
12:28:21 	at hudson.remoting.Request$2.run(Request.java:376)
12:28:21 	at hudson.remoting.InterceptingExecutorService.lambda$wrap$0(InterceptingExecutorService.java:78)
12:28:21 	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
12:28:21 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
12:28:21 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
12:28:21 	at java.base/java.lang.Thread.run(Thread.java:829)
12:28:21 	Suppressed: hudson.remoting.Channel$CallSiteStackTrace: Remote call to Rechenknecht
12:28:21 		at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1784)
12:28:21 		at hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:356)
12:28:21 		at hudson.remoting.Channel.call(Channel.java:1000)
12:28:21 		at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.execute(RemoteGitImpl.java:143)
12:28:21 		at jdk.internal.reflect.GeneratedMethodAccessor419.invoke(Unknown Source)
12:28:21 		at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
12:28:21 		at java.base/java.lang.reflect.Method.invoke(Method.java:566)
12:28:21 		at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.invoke(RemoteGitImpl.java:129)
12:28:21 		at com.sun.proxy.$Proxy120.execute(Unknown Source)
12:28:21 		at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1216)
12:28:21 		at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1294)
12:28:21 		at hudson.scm.SCM.checkout(SCM.java:540)
12:28:21 		at hudson.model.AbstractProject.checkout(AbstractProject.java:1215)
12:28:21 		at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:645)
12:28:21 		at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:85)
12:28:21 		at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:517)
12:28:21 		at hudson.model.Run.execute(Run.java:1896)
12:28:21 		at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:543)
12:28:21 		at hudson.model.ResourceController.execute(ResourceController.java:101)
12:28:21 		at hudson.model.Executor.run(Executor.java:442)
12:28:21 ERROR: Error cloning remote repo 'origin'
12:28:21 Started calculate disk usage of build
12:28:21 Finished Calculation of disk usage of build in 0 seconds
12:28:21 Started calculate disk usage of workspace
12:28:21 Finished Calculation of disk usage of workspace in 0 seconds
12:28:21 Notifying upstream projects of job completion
12:28:21 No emails were triggered.
12:28:21 Finished: FAILURE