When running the application all the labels are displayed like this:

WorkWithPlus generates labels for all the captions used within the application. This labels are generated in a Language object within the KB, with their proper "Localized Text":

How to solve the issue?

In order to avoid the issue you have to set the "Translation Type" property to  "Static" or "Run-time" as follows:

If you want to have just one language in the generated application you can set "Static". But if you have more than one language in the KB and want to have the possibility to change at runtime the language of the application, you have to set "Runtime"

Then you may need to Rebuild All the application so that properly impact the new setting.