unknown character reference error

[miurahr]

There are a couple of errors of "Unknown character reference" such as

ERROR [WdicUtil] unknown character reference: Alphapsili
ERROR [WdicUtil] unknown character reference: Obreve
ERROR [WdicUtil] unknown character reference: Omicrondasiaoxia
ERROR [WdicUtil] unknown character reference: Omicronpsilioxia
ERROR [WdicUtil] unknown character reference: date2011年}
ERROR [WdicUtil] unknown character reference: dbdot
ERROR [WdicUtil] unknown character reference: devanagariom
ERROR [WdicUtil] unknown character reference: epsilondasia
ERROR [WdicUtil] unknown character reference: epsilondasiaoxia
ERROR [WdicUtil] unknown character reference: geten
ERROR [WdicUtil] unknown character reference: ichiten
ERROR [WdicUtil] unknown character reference: iotavaria
ERROR [WdicUtil] unknown character reference: jouten
ERROR [WdicUtil] unknown character reference: niten
ERROR [WdicUtil] unknown character reference: obreve
ERROR [WdicUtil] unknown character reference: omicrondasia
ERROR [WdicUtil] unknown character reference: reten
ERROR [WdicUtil] unknown character reference: santen
ERROR [WdicUtil] unknown character reference: space
ERROR [WdicUtil] unknown character reference: tbdot

(there are sort|uniq -ed)

[miurahr]

ERROR [WdicUtil] unknown character reference: date2011年} may be data corruption.