Hello Conor,
This error means you have a broken template because the action 0 doesn't exist. This would either be an import or an export. Not sure how you managed to get a template like this but you can install example templates by going to Maintenance -> CSVI Pro and then choose Install example templates.
You could run these templates to see if the export works for you. Of course you can also create a template by clicking New on the Templates page. We have explained in the
Create a template tutorial on how to create a template.
Kind regards,
RolandD
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