I'm trying to upgrade my Parabola system but I get the following error from pacman:

1. pacman -Syu
   :: Synchronizing package databases...
   nonprism is up to date
   libre is up to date
   core is up to date
   extra is up to date
   community is up to date
   pcr is up to date
   :: Starting full system upgrade...
   resolving dependencies...
   looking for conflicting packages...

Packages (20) bitcoin-qt-0.13.1-2 boost-libs-1.62.0-2
cups-filters-1.11.5-1.parabola1 ffmpeg-1:3.2-2 gaupol-1.0-1
git-2.10.2-1 libcmis-0.5.1-4 libgexiv2-0.10.4-1
libixion-0.11.1-3 liborcus-0.11.2-3 libphonenumber-7.7.0-2
libpst-0.6.67-2 mkvtoolnix-cli-9.5.0-2 mkvtoolnix-gui-9.5.0-2
mpv-1:0.21.0-2 python-packaging-16.8-1
python-setuptools-1:28.7.1-1 python2-packaging-16.8-1
python2-setuptools-1:28.7.1-1 sdl2-2.0.5-2

Total Download Size: 0.05 MiB
Total Installed Size: 134.76 MiB
Net Upgrade Size: 0.67 MiB

:: Proceed with installation? [Y/n] yes
:: Retrieving packages...
error: failed retrieving file 'libgexiv2-0.10.4-1-x86_64.pkg.tar.xz' from repo.parabola.nu : The requested URL returned error: 404
warning: failed to retrieve some files
error: failed to commit transaction (unexpected error)
Errors occurred, no packages were upgraded.