error handling in case a requested app doesn't exists
error handling in case a requested app doesn't exists

pmattern/server,whitekiba/server,IljaN/core,bluelml/core,jbicha/server,andreas-p/nextcloud-server,pmattern/server,whitekiba/server,pollopolea/core,nextcloud/server,xx621998xx/server,cernbox/core,sharidas/core,IljaN/core,andreas-p/nextcloud-server,jbicha/server,sharidas/core,cernbox/core,pmattern/server,pollopolea/core,michaelletzgus/nextcloud-server,pmattern/server,xx621998xx/server,owncloud/core,jbicha/server,lrytz/core,cernbox/core,whitekiba/server,jbicha/server,endsguy/server,cernbox/core,pollopolea/core,pixelipo/server,sharidas/core,IljaN/core,cernbox/core,bluelml/core,bluelml/core,endsguy/server,IljaN/core,Ardinis/server,bluelml/core,lrytz/core,andreas-p/nextcloud-server,Ardinis/server,michaelletzgus/nextcloud-server,endsguy/server,owncloud/core,bluelml/core,whitekiba/server,owncloud/core,Ardinis/server,pmattern/server,pollopolea/core,IljaN/core,endsguy/server,sharidas/core,michaelletzgus/nextcloud-server,pixelipo/server,nextcloud/server,owncloud/core,xx621998xx/server,jbicha/server,andreas-p/nextcloud-server,michaelletzgus/nextcloud-server,Ardinis/server,pixelipo/server,endsguy/server,Ardinis/server,pollopolea/core,xx621998xx/server,phil-davis/core,pixelipo/server,lrytz/core,xx621998xx/server,andreas-p/nextcloud-server,pixelipo/server,nextcloud/server,owncloud/core,nextcloud/server,lrytz/core,lrytz/core,sharidas/core,whitekiba/server