Error no connect Qlik Sense

[MarioCenteno]

I am trying to enter an application but when I log in to my dashboard it shows me the following error.

[Gysbert_Wassenaar]

Are you using Qlik Sense Desktop or Qlik Sense Enterprise? If the latter, check that the Engine service is running.

[MarioCenteno]

I use Qlik Sense Desktop I would believe that the service engine is working because the other apps do let me open them.

[Gysbert_Wassenaar]

Does this still happen if you close Qlik Sense Desktop and restart it?

[BalaBhaskar_Qlik]

Just do restart of PC or Qlik Sense.

Or Else

Right click on the app and select "Open without data". Is the Application worked earlier?

[BalaBhaskar_Qlik]

May be,

set AppRecoveryMode = 1 in settings.ini file, and try to reopen the app.