Error: Migration session ??!

[Jrak]

hello

this problem for my server

Error: Migration session 'Ms6OTN TWAorP4GLciOu/A==' raised exception: Could not initialize session directory

new server?!

 

[IgorG]

Do you have any domains with custom buttons with non-UTF8 text? It can be a reason of this migration problem. But other reasons are possible too. Contact support team if you can find it by yourself.