The subject line essentially.
C-h f dired-do-query-replace-regexp RET returns:

    dired-do-query-replace-regexp is an interactive native compiled Lisp
    function in ‘dired-aux.el’.

    (dired-do-query-replace-regexp FROM TO &optional DELIMITED)

    Do ‘query-replace-regexp’ of FROM with TO, on all marked files.
    Third arg DELIMITED (prefix arg) means replace only word-delimited matches.
    If you exit (C-g, RET or q), you can resume the query replace
    with the command M-x tags-loop-continue.

It should be fileloop-continue instead.

See attached patch.