AUR Libpng15 GPG key outdated (Solved)

[Zaki SI-Lounis]

I come to you all if with an important message. If you try to install Maya (or other software requiring Libpng15) then you will find that the GPG key is outdated, if this happens then run this comand gpg --keyserver pool.sks-keyservers.net --recv-keys 8048643BA2C840F4F92A195FF54984BFA16C640F