Error -129 or -128 when reloading app

[TomBond77]

Hi experts

I have a problem reloading an app. This app worked for years very fine. Now I am getting the above error. 

I have checked the resolution proposals.

"Add additional resources": What kind of resources exactly are meant?

Thank you, Tom

[brunobertels]

Hi 

have a look to this link below 

https://community.qlik.com/t5/Official-Support-Articles/Error-129-or-128-when-reloading-app/ta-p/171... 

Regards 

[TomBond77]

Thanks, I am already referring to this link...but my question is different....