ServiceDesk not work

ServiceDesk not work

Good Morning. For maintenance work, I had to restart the server. Once the server is restarted, the Servicedesk has stopped working. When I run the following command changeDBServer.bat and click on Test and Save, the screens that I attach are displayed. 

Neither can backup nor install version 9002

Please can you help me? 

Thank you very much and I'm sorry for the inconvenience. 

Best regards
José Rodríguez