Said the Gramophone - image by Danny Zabbal

Editing the plugin means nothing if your server falls over. You need to ensure your php.ini or .user.ini file contains:

All-in-One WP Migration expects a specific filename. Rename your uploaded file to: import.wpress

: Press Ctrl + F and search for AI1WM_MAX_FILE_SIZE .

That’s a raw backup – not .wpress format, but it works. Then on new server: