Import error: Element 'records': No matching global declaration available for the validation root

I’m trying export journal from OJS 2.4.8 and i wont import this to OJS 3.x. but i have this error: * Element ‘records’: No matching global declaration available for the validation root. What i must do for fix this error?
P.S. Sorry for my English

Hi @ZheArt,

Export from OJS 2x and import to OJS 3x is not supported. Why don’t you try upgrading the OJS instead?

Regards, Primož

My system administrator on vacation, I have to transfer a large number of releases to the new version of ojs3. I do not have permission to update