Installing minim server 2 problem

[VBU]

Hi, I have bought an HP Elitebook G7. Now I will install minimserver 2 on my QNAP TS-131. Unfortunately, I uninstalled the old app in my NAS. I have followed the installation instructions. I was able to install minimwatch. However, the installation for minimserver does not start. I use the Edge browser. There I can see that Edge has downloaded minimserver 2 under the downloads tab. I have installed Java according to the instructions. I can see that minimserver is saved in My Computer, Documents. I can also see a LOG file in File Station5 in my NAS. The icon is a blank sheet of paper for minimserver. When I double-click on Minimserver 2, a popup window opens. There I should choose an app to open the .qpkg file with. Meaning; Minimserver is not installed. I have followed the troubleshooting page. I have tried turning off the firewall. I have turned off my router, my NAS, and all devices with Minim installed or that control Minim. And then started everything again. When I go into the app center in my NAS to try to install manually, I can't find minimserver even though I can see the file in My Computer. How do I get past this popup window? And then install minim server 2? Greetings Ulf Jansson Uppsala, Sweden.