MarsSeed [1] filed a deletion request for liblbxutil [2]: Broken. EOL since 2009. Not compatible with the current API/ABI of Arch/core/zlib.
No longer has any reverse dependencies. Safe to delete. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/liblbxutil/
