Cannot print preview invoice

Cannot print preview invoice

Well today i did my first 5 sales. Everything worked well until I tried to get a copy of the invoice to add it with my order. I get the following error and 3 links of pdf files

Index of /components/com_jshopping/files/pdf_orders
_79c117dd411f4b35545b20dfa9286ebc.pdf
_a3ac5cecc1a6fcf40de4488473f7301d.pdf
_c70d01a9df5c7b2fd416ee9456276ebe.pdf

I changed the permission of components/com_jshopping/files/pdf_orders to 777 but still receiving same errors on the 5 orders i had. Is there something else i am missing. Any help is greatly appreciated.

Thanks
SAM

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