Hi, while using Migration Manager to transfer all domaindata from one server to another, I get an 152 error on every domain and the manager stops with the following error message. I tried to transfer mail, domain and db data seperatly but it always ends with the following error. Code:Cause: Failed to import backup XML: errcode must be '0' (no errors) or '116' (backup sign error). Output of pmmcli utility: <?xml version="1.0" encoding="UTF-8"?> <response> <errcode>152</errcode> <errmsg>Unable to import file as dump: The file you are trying to upload is not a valid backup file</errmsg> </response>Systems are Ubuntu 12.04 (src) and Ubuntu 14.04 (dest). Both servers ar running on Plesk 12.5.30. On src runs Web Host Edition while on dest runs Webadmin Editon. I have no clue where to look for the source of this error. Any ideas?