Import from SMF to Vanilla - Invalid CSRF token
I used the porter-core-2.3 importer tool to export data from my SMF 188.8.131.52. forum. The export went ok with no problems.
When importing into Vanilla 2.5.1. - after it uploads fully I get the following error:
Invalid CSRF token
I searched this forum but didn't find similar errors. Any idea what it could be?