Get the following error for Customer Invoices Emailing Customer Invoice - Report could not be saved as PDF file automatically. Please save it manually and then attach Exporting Customer Invoice to PDF - Error in file C:\ Docume~1\Adminis~.....Error detected by Export DLL
image as a logo is what gives the problem in report export. Also if the
image is a gif image then this error may be caused but if the logo image
is type .bmp or jpgs are working fine.
Please remove the current logo from your ADMIN > Site Settings > General Settings
Assign a logo of lesser size and bmp or jpg type
Try to export and email again
If the issue persists, please create a ticket to contact Customer Support