`Sorry for the delay in responding, thank you szopsterpl, rzepsen for trying to help, I guess the WooCommerce Conditional Shipping and Payments plugin wasn’t causing the errors because even uninstalling the plugin was still causing problems, since the last time I wrote I disabled the Invoices plugin and got the NIP field (tax identification number) on the order from another plugin, today I enabled the plugin, installed it and miracle – the plugin is working and the order is processing normally now, no more error displayed and the order is coming in. As you can see it is fixed, thank you again.
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This reply was modified 4 years, 7 months ago by archi133.