I'm using this extension for invoicing tickets bought via a webform. https://github.com/fuzionnz/nz.co.fuzion.webformparticipants
When buying 9 or less tickets it works as required. Once 10 or more tickets are bought and the user submits payment its takes a long to load the next page which is white.
The payment is taken via eWay and the participants are entered into Civi. No confirmation emails are sent.
Without the extension enabled the payment goes through. I would like to use the extension, otherwise only 1 ticket is included on the invoice.
CMS/modules/Civi are on the latest version. Does anyone have any advice how to fix this issue? Cheers