[03.18.2021 09:13:23.0475] [0] The backup copy of the install path is 'C:\Program Files\Microsoft\Exchange Server\V14'.
[03.18.2021 09:13:23.0475] [0] The backup copy of the previously installed version is '14.3.123.4'.
[03.18.2021 09:13:23.0475] [0] The installation mode is set to: 'BuildToBuildUpgrade'.
[03.18.2021 09:13:23.0521] [0] [ERROR] Setup hat 'LPVersioning.xml' nicht gefunden.
[03.18.2021 09:13:23.0521] [0] [ERROR] Die LPVersioning-Datei besitzt einen ungültigen Wert. Weitere Informationen finden Sie im Exchange-Protokoll.
[03.18.2021 09:13:24.0645] [0] End of Setup
[03.18.2021 09:13:24.0645] [0] **********************************************