E4103 error

The files of a fetched dependency do not match the checksum in wowlua.lock. wowlua checks every git, SVN and archive dependency against its locked checksum on every fetch, so a library that changed after it was locked (a tag moved, an archive replaced, a damaged cache) does not end up in your AddOn unnoticed.

If the source changed on purpose, run wowlua update for that dependency and review the new lock entry. Otherwise run wowlua cache clean --all and fetch again. The error needs a lockfile and a fetched dependency, so it has no example here.