fix typo in error message and change error code to 403
fix typo in error message and change error code to 403

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