bernd@456 ~ $ cd /opt/JETI\ Studio/
bernd@456 /opt/JETI Studio $ ls
components.xml  Help                 Licenses             network.xml
dc-sim          InstallationLog.txt  maintenancetool      plugins
Devices         JETI-Studio          maintenancetool.dat  qml
Example.log     lib                  maintenancetool.ini
bernd@456 /opt/JETI Studio $ ./JETI-Studio 
./JETI-Studio: error while loading shared libraries: libsystemd.so.0: cannot open shared object file: No such file or directory
bernd@456 /opt/JETI Studio $ sudo ./JETI-Studio 
[sudo] password for bernd: 
./JETI-Studio: error while loading shared libraries: libsystemd.so.0: cannot open shared object file: No such file or directory
bernd@456 /opt/JETI Studio $ ./dc-sim 
./dc-sim: error while loading shared libraries: libQt5SerialPort.so.5: cannot open shared object file: No such file or directory

bernd@456 /opt/JETI Studio $ ./maintenancetool 
[0] Warning: Could not create lock file '/opt/JETI Studio/lockmyApp1234865.lock': Keine Berechtigung
bernd@456 /opt/JETI Studio $ 
bernd@456 /opt/JETI Studio $ sudo ./maintenancetool 
bernd@456 /opt/JETI Studio $