Issue WP All Import/Export –

[carlsson]

Do we have anyone that's an expert on the WP All Import plugin?

I am stuck with an import and need help.

Background
We have built a new WC site for a client. We made a copy of the site, made some changes, and now I want to import all customers/orders/articles etc to the new site. So we bought WPAllImport since that should be the best.

Problem
After a lot of struggle I have finally managed to import everything except the orders. It has stalled on 16 hours and 9.935 records (out of 16.235). No matter what I do I can't get it to continue, but gets the "Your server terminated the process message".

I am doing the import with "Increase speed by disabling do_action calls in wp_insert_post during import" turned on to avoid any interference from unwanted actions.

Please note that we haven't changed anything in the database, the structure is still the same as it was from the original site.
All plugins that I can turn off are off.

Since this is an export -> import from the very same database, I don't understand why it's messing with me.

Here's the error:

[Thu Oct 16 13:54:22.153351 2025] [proxy_fcgi:error] [pid 610548:tid 140388094428928] [client 158.174.107.96:0] AH01071: Got error 'PHP message: PHP Fatal error: Uncaught Error: The script tried to modify a property on an incomplete object. Please ensure that the class definition "stdClass" of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide an autoloader to load the class definition in /var/www/vhosts/mydomain.se/httpdocs/wp-includes/formatting.php:5141\nStack trace:\n#0 /var/www/vhosts/mydomain.se/httpdocs/wp-includes/formatting.php(2853): map_deep()\n#1 /var/www/vhosts/mydomain.se/httpdocs/wp-includes/formatting.php(5798): stripslashes_deep()\n#2 /var/www/vhosts/mydomain.se/httpdocs/wp-content/plugins/wp-all-import-pro/models/import/record.php(3280): wp_unslash()\n#3 /var/www/vhosts/mydomain.se/httpdocs/wp-content/plugins/wp-all-import-pro/controllers/admin/import.php(2962): PMXI_Import_Record->process()\n#4 /var/www/vhosts/mydomain.se/httpdocs/wp-content/plugins/wp-all-import-pro/wp-all-import-pro.php(775): PMXI_Admin_Import->process()\n#5 /var/www/vhost...', referer: https://mydomain.se/wp-admin/admin.php?page=pmxi-admin-manage&id=19&action=update

Any ideas?