I'm trying to install IRIS 2021.1 in the Ubuntu 18.04 but all the time I got the message below:

Starting installation
Starting up InterSystems IRIS for loading...
Invalid ownership for ./irisdb
InterSystems IRIS is already up!
Status code is 1
InterSystems IRIS failed to start.
Check /mnt/WinData/InterSystemsLinux/mgr/messages.log for more details.
Call InterSystems Technical Support if you need assistance.

* Installation aborted *

Post-installation tasks failed, installation is not complete