Custom template error on download PDF - "Cannot modify header information - headers already sent"

@amaau SOrry about the delay here!

I tested out your template and also in a new copy and I can not replicate the issue that you are describing - the PDF generates just fine.

Is your system completely updated?

Also, there has been another thread with a work around with this that might solve your issue if it’s what is causing it. Google fonts and custom Pro Report templates