no possible to use client for project downloaded from QGIS

[PeterPetrik]

"2021-04-09T12:51:15.172Z pull /myproject: Requesting project info: https://public.cloudmergin.com//v1/project//myproject\n"
"2021-04-09T12:51:15.204Z pull /myproject: FAILED - Network API error: projectInfo(): Error transferring https://public.cloudmergin.com//v1/project//myproject - server replied: NOT FOUND\n"
"2021-04-09T12:51:15.204Z sync /myproject: ### FAILED ###\n\n"

looks like the namespace is not recognized