Php error when generating invoice

Hey all,

I’ve managed to install this via my host using Softacalous. Everything works great but when I saved an invoice and clicked download I got the following error:

An Error Was Encountered
Unable to load the requested file: invoice_templates/pdf/.php

Is anyone able to help me fix this? I’m a complete technophobe and reply on the easiness of things such as Softacalous to get me through!

Cheers,
B

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