Well I reread the article from note 2244898 - Error: "Data Provider implementation 'ZTM_TGW_SVC_MODEL_0002_BE' '01' does not exist"(SAP Fiori LL18 - System Aliases definition for Fiori) and since I have embedded deployment I changed my system aliases back to only Local one.
But I still get the eror (though a different one):
Please advise whats wrong...
Best wishes,
Marina