pacman warning: running XferCommand: fork failed!

In the past few weeks, I have not been able to update my Linux system (Artix/Arch). This is what happens: ~ sudo pacman -Syu :: Synchronizing package databases... warning: running XferCommand: fork failed! warning: running XferCommand: fork failed! warning: running XferCommand: fork failed! ... warning: running XferCommand: fork failed! warning: running XferCommand: fork failed! warning: running XferCommand: fork failed! error: failed to synchronize all databases (error invoking external downloader) Same result using -Syyu. In the past this command always worked. My internet connection is fine (I tried both with Wi-Fi and wired, ping is successful). My mirrorlist file is up to date. I have not been able to find any information related to these error messages. Thank you for any help. ---------- Current configuration: Kernel: 5.17.8-artix1-1 ---------- More info: grep XferCommand /etc/pacman.conf #XferCommand = /usr/bin/curl -L -C - -f -o %o %u XferCommand = /usr/bin/wget --passive-ftp -c -O %o %u