...
00:00:41.960  [Pipeline] {
00:00:41.996  [Pipeline] stage
00:00:42.009  [Pipeline] { (Declarative: Checkout SCM)
00:00:42.063  [Pipeline] checkout
00:00:42.077  The recommended git tool is: C:\Program Files\Git\cmd\git.exe
00:00:42.109  using credential 7904aa37-f4d5-430c-941a-c18eb5d13e6b
00:00:42.189  Fetching changes from the remote Git repository
00:00:42.251  Fetching without tags
00:00:42.421  ERROR: Error fetching remote repo 'origin'
00:00:42.421  hudson.plugins.git.GitException: Failed to fetch from ssh://git@bitbucket.our-website.de/tools/io.git
00:00:42.421  	at hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:1004)
00:00:42.421  	at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1245)
00:00:42.421  	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1305)
00:00:42.421  	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:129)
00:00:42.421  	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:97)
00:00:42.421  	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:84)
00:00:42.421  	at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47)
00:00:42.421  	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
00:00:42.421  	at java.util.concurrent.FutureTask.run(Unknown Source)
00:00:42.421  	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
00:00:42.421  	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
00:00:42.421  	at java.lang.Thread.run(Unknown Source)
00:00:42.421  Caused by: hudson.plugins.git.GitException: Command "C:\Program Files\Git\cmd\git.exe fetch --no-tags --force --progress -- ssh://git@bitbucket.our-website.de/tools/io.git +refs/heads/*:refs/remotes/origin/*" returned status code 128:
00:00:42.421  stdout: 
00:00:42.421  stderr: git@bitbucket.amazone.de: Permission denied (publickey).
00:00:42.421  fatal: Could not read from remote repository.
00:00:42.421  
00:00:42.421  Please make sure you have the correct access rights
00:00:42.421  and the repository exists.
00:00:42.421  
...

...
00:00:00.451 The recommended git tool is: NONE
00:00:00.463 using credential 7904aa37-f4d5-430c-941a-c18eb5d13e6b
00:00:00.474 Cloning the remote Git repository
00:00:00.478 Cloning repository ssh://git@bitbucket.our-website.de/basis/daisychain.git
00:00:00.479  > C:\Program Files\Git\cmd\git.exe init d:\jenkins_agent\workspace\DEV_BASIS\DEV_DAISYCHAIN # timeout=10
00:00:00.536 Fetching upstream changes from ssh://git@bitbucket.our-website.de/basis/daisychain.git
00:00:00.537  > C:\Program Files\Git\cmd\git.exe --version # timeout=10
00:00:00.553  > git --version # 'git version 2.32.0.windows.1'
00:00:00.553 using GIT_ASKPASS to set credentials bitbucket token access
...