Mac having issues when starting paralles

[antonio19]

I have the versione of parallels number of 2019 and when I open the virtual machine and I use windows all the apps on the mac are stuck also the device and I have to force it to shut. What could be the problem?

 

[Maria@Parallels]

I have the versione of parallels number of 2019 and when I open the virtual machine and I use windows all the apps on the mac are stuck also the device and I have to force it to shut. What could be the problem?

Hello, hat is your macOS version?

 

[antonio19]

My macOS version is 10.13.6. How I can resolve this problem?