Cannot parse text or number `null`

I'm running Gnome Software on Arch Linux. One error I'm getting looks like the inability to parse the version number of my system, which doesn't exist as it is a rolling release system. The error looks like the following and appears multiple times in the full log.

not GsPlugin error g-io-error-quark:15: failed to process components/component/id[text()='archlinux.www.Arch Linux-(null)']/../pkgname/..|components/component[@type='webapp']/id[text()='archlinux.www.Arch Linux-(null)']/..|component/id[text()='archlinux.www.Arch Linux-(null)']/..: cannot parse text or number `null`

Full log:

$ gnome-software
16:40:42:0370 Gs  adding wildcard app */*/*/org.gnome.Builder.desktop/* to plugin cache
16:40:42:0370 Gs  adding wildcard app */*/*/org.gnome.Calculator.desktop/* to plugin cache
16:40:42:0370 Gs  adding wildcard app */*/*/org.gnome.clocks.desktop/* to plugin cache
16:40:42:0370 Gs  adding wildcard app */*/*/org.gnome.Dictionary.desktop/* to plugin cache
16:40:42:0370 Gs  adding wildcard app */*/*/org.gnome.Documents.desktop/* to plugin cache
16:40:42:0370 Gs  adding wildcard app */*/*/org.gnome.Evince/* to plugin cache
16:40:42:0370 Gs  adding wildcard app */*/*/org.gnome.gedit.desktop/* to plugin cache
16:40:42:0370 Gs  adding wildcard app */*/*/org.gnome.Maps.desktop/* to plugin cache
16:40:42:0371 Gs  adding wildcard app */*/*/org.gnome.Weather/* to plugin cache
16:40:42:0371 Gs  hiding category games featured applications: found only 0 to show, need at least 9
16:40:42:0371 Gs  not handling error failed for action get-updates-historical: failed to build result for f49999b6e3af5b4bf8ad1f2ed2922b76df457271
16:40:42:0371 Gs  hiding category graphics featured applications: found only 0 to show, need at least 9
16:40:42:0465 Gs  Only 2 apps for popular list, hiding
16:40:42:0612 Gs  Only 0 apps for recent list, hiding
16:40:42:0726 Gs  not GsPlugin error g-io-error-quark:15: failed to process components/component/id[text()='archlinux.www.Arch Linux-(null)']/../pkgname/..|components/component[@type='webapp']/id[text()='archlinux.www.Arch Linux-(null)']/..|component/id[text()='archlinux.www.Arch Linux-(null)']/..: cannot parse text or number `null`
16:40:42:0730 Gs  not handling error failed for action refine: failed to process components/component/id[text()='archlinux.www.Arch Linux-(null)']/../pkgname/..|components/component[@type='webapp']/id[text()='archlinux.www.Arch Linux-(null)']/..|component/id[text()='archlinux.www.Arch Linux-(null)']/..: cannot parse text or number `null`
16:40:42:0781 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0781 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0782 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0782 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0797 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0797 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0814 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0814 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0857 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0857 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0868 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0868 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0879 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0879 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0915 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0915 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0917 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0917 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0947 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:42:0947 Gs  gs_app_add_icon: assertion 'G_IS_ICON (icon)' failed
16:40:52:0074 Gs  hiding category games featured applications: found only 0 to show, need at least 9
16:40:52:0074 Gs  not GsPlugin error g-io-error-quark:15: failed to process components/component/id[text()='archlinux.www.Arch Linux-(null)']/../pkgname/..|components/component[@type='webapp']/id[text()='archlinux.www.Arch Linux-(null)']/..|component/id[text()='archlinux.www.Arch Linux-(null)']/..: cannot parse text or number `null`
16:40:52:0075 Gs  hiding category graphics featured applications: found only 0 to show, need at least 9
16:40:52:0081 Gs  Only 7 apps for popular list, hiding
16:40:52:0084 Gs  not handling error failed for action refine: failed to process components/component/id[text()='archlinux.www.Arch Linux-(null)']/../pkgname/..|components/component[@type='webapp']/id[text()='archlinux.www.Arch Linux-(null)']/..|component/id[text()='archlinux.www.Arch Linux-(null)']/..: cannot parse text or number `null`
16:40:52:0286 Gs  Only 0 apps for recent list, hiding
16:41:32:0507 Gs  hiding category games featured applications: found only 0 to show, need at least 9
16:41:32:0507 Gs  hiding category graphics featured applications: found only 0 to show, need at least 9
16:41:32:0507 Gs  Only 7 apps for popular list, hiding
16:41:33:0584 Gs  Called switch_to(details) when in mode search
16:41:33:0584 Gs  not GsPlugin error g-io-error-quark:15: failed to process components/component/id[text()='archlinux.www.Arch Linux-(null)']/../pkgname/..|components/component[@type='webapp']/id[text()='archlinux.www.Arch Linux-(null)']/..|component/id[text()='archlinux.www.Arch Linux-(null)']/..: cannot parse text or number `null`
16:41:33:0590 Gs  not handling error failed for action refine: failed to process components/component/id[text()='archlinux.www.Arch Linux-(null)']/../pkgname/..|components/component[@type='webapp']/id[text()='archlinux.www.Arch Linux-(null)']/..|component/id[text()='archlinux.www.Arch Linux-(null)']/..: cannot parse text or number `null`
16:41:50:0016 Gs  Only 0 apps for recent list, hiding
16:41:58:0163 Gs  hiding category games featured applications: found only 0 to show, need at least 9
16:41:58:0164 Gs  hiding category graphics featured applications: found only 0 to show, need at least 9
16:41:58:0164 Gs  Only 7 apps for popular list, hiding
16:41:58:0498 Gs  Called switch_to(details) when in mode search
16:41:58:0498 Gs  not GsPlugin error g-io-error-quark:15: failed to process components/component/id[text()='archlinux.www.Arch Linux-(null)']/../pkgname/..|components/component[@type='webapp']/id[text()='archlinux.www.Arch Linux-(null)']/..|component/id[text()='archlinux.www.Arch Linux-(null)']/..: cannot parse text or number `null`
16:41:58:0500 Gs  Only 0 apps for recent list, hiding
16:41:58:0505 Gs  not handling error failed for action refine: failed to process components/component/id[text()='archlinux.www.Arch Linux-(null)']/../pkgname/..|components/component[@type='webapp']/id[text()='archlinux.www.Arch Linux-(null)']/..|component/id[text()='archlinux.www.Arch Linux-(null)']/..: cannot parse text or number `null`
16:42:15:0832 Gs  Called switch_to(details) when in mode search
16:42:20:0076 Gs  Called switch_to(details) when in mode search
16:42:20:0077 Gs  not GsPlugin error g-io-error-quark:15: failed to process components/component/id[text()='archlinux.www.Arch Linux-(null)']/../pkgname/..|components/component[@type='webapp']/id[text()='archlinux.www.Arch Linux-(null)']/..|component/id[text()='archlinux.www.Arch Linux-(null)']/..: cannot parse text or number `null`
16:42:20:0090 Gs  hiding category games featured applications: found only 0 to show, need at least 9
16:42:20:0090 Gs  hiding category graphics featured applications: found only 0 to show, need at least 9
16:42:20:0096 Gs  Only 7 apps for popular list, hiding
16:42:20:0188 Gs  not handling error failed for action refine: failed to process components/component/id[text()='archlinux.www.Arch Linux-(null)']/../pkgname/..|components/component[@type='webapp']/id[text()='archlinux.www.Arch Linux-(null)']/..|component/id[text()='archlinux.www.Arch Linux-(null)']/..: cannot parse text or number `null`
16:42:20:0501 Gs  Only 0 apps for recent list, hiding