I have valentina server 6.3 on ubuntu 16 and Postgresql 9.6 working.
Now I have valentina 9.3.1 64-bit and Postgreql 11.4 64-bits in a virtual machine to do tests.
I want to copy my projects from valentina 6.3 to valentina 9.3.1 in this way
unregister project, copy files, register project.
But I have the following error when registering the projects in Valentina 9.6
<AST>: unexpected AST node: REGISTE_PROJECT
How can you register the project?
With Valentina Studio 6.2 can not find the option to make a backup, it is done by command?
How to restore a backup with command or Valentina study 9?