Errors during downloading metadata for repository 'qubes-contrib-dom0-r4.2-current'

Trying to install qvm-screenshot-tool, encountering this:

$ sudo qubes-dom0-update qvm-screenshot-tool
Using sys-firewall as UpdateVM to download updates for Dom0; this may take some time...
3isec Qubes Dom0 Repository (updates)           2.7 kB/s | 3.0 kB     00:01    
Fedora 37 - x86_64                              2.8 kB/s | 4.0 kB     00:01    
Fedora 37 - x86_64 - Updates                     10 kB/s | 3.9 kB     00:00    
Qubes OS Contrib Repository for dom0 (updates)   26  B/s | 153  B     00:05    
Errors during downloading metadata for repository 'qubes-contrib-dom0-r4.2-current':
  - Status code: 404 for https://contrib.qubes-os.org/yum/r4.2/current/dom0/fc37/repodata/repomd.xml (IP: 147.75.102.29)
Error: Failed to download metadata for repo 'qubes-contrib-dom0-r4.2-current': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
Qubes Host Repository (updates)                 2.5 kB/s | 2.7 kB     00:01    
Ignoring repositories: qubes-contrib-dom0-r4.2-current
No match for argument: qvm-screenshot-tool
Error: Unable to find a match: qvm-screenshot-tool

What’s happening? Is this serious or trivial?