As stated above, data migration between servers running different versions of Vibe is not supported.
If you want to migrate data from Vibe 3.4 to a new Vibe 4 system, you must:
Upgrade the Vibe 3.4 server to Vibe 4.
Install a new Vibe 4 server
Migrate the data from the old Vibe 4 server to the new Vibe 4 system, by using the instructions in the following sections.