I would probably leave a comment over emailing directly. If you get no response after a while I would then send an orphan/deletion request detailing the problem and pick up the package myself and fix the problems.
On 18 January 2018 at 19:55, Panayotis Katsaloulis via aur-general firstname.lastname@example.org wrote:
Newbie here in Arch Linux.
I have a question, which I didn't find in the documentation.
What is the proposed way to inform about an AUR build file containing errors? Especially if I e-mailed the maintainer with no response?