Error Message when opening visualisation

[Signetor]

I am able to;

• open QlikSense,
• see all Apps in the Qlik Sense Hub
• see all sheets
• and load data for all the Apps. 

However when I try to access the sheet it's self I get the following message displayed

An error occured

and then a refresh button

A vague message with no explanation as to what I should be looking for.

Does anyone have any suggestions?

[Alan_Slaughter]

Hi David, I would suggest reviewing this article:

https://community.qlik.com/t5/Official-Support-Articles/quot-An-error-occurred-Connection-lost-quot-...