Internal error (invalid XML)

:18: parser error : Opening and ending tag mismatch: p line 18 and hidden
дова «счастливые часов не наблюдают»–
                                                                                ^
:18: parser error : Opening and ending tag mismatch: p line 18 and text_annotation
тливые часов не наблюдают»–
                                                                                ^
:18: parser error : Opening and ending tag mismatch: annotation line 18 and genre_book
et-date date_add="2017-12-12"/>
                                                                                ^
:24: parser error : Opening and ending tag mismatch: p line 24 and hidden
ольная библиотека» представляет шедев
                                                                                ^
:24: parser error : Opening and ending tag mismatch: p line 24 and text_annotation
лиотека» представляет шедев
                                                                                ^
:24: parser error : Opening and ending tag mismatch: annotation line 24 and genre_book
et-date date_add="2017-12-12"/>
                                                                                ^
:30: parser error : Opening and ending tag mismatch: title-info line 21 and biblio_subgenre_by_pop
p/" post="subgenre=6421" page="1" pages="1" needq="0"/>
                                                                                ^
:30: parser error : Opening and ending tag mismatch: hidden line 21 and page-data
bgenre=6421" page="1" pages="1" needq="0"/>
                                                                                ^
:30: parser error : Opening and ending tag mismatch: text_annotation line 21 and xportal-page
SubGenreN id="6421" value="Драматургия"/>
                                                                                ^
:30: parser error : Opening and ending tag mismatch: genre_book line 21 and xportal
тургия"/>
                                                                                ^
:30: parser error : Premature end of data in tag title-info line 15
тургия"/>
                                                                                ^
:30: parser error : Premature end of data in tag hidden line 15
тургия"/>
                                                                                ^
:30: parser error : Premature end of data in tag text_annotation line 15
тургия"/>
                                                                                ^
:30: parser error : Premature end of data in tag genre_book line 15
тургия"/>
                                                                                ^
:30: parser error : Premature end of data in tag biblio_subgenre_by_pop line 12
тургия"/>
                                                                                ^
:30: parser error : Premature end of data in tag page-data line 12
тургия"/>
                                                                                ^
:30: parser error : Premature end of data in tag xportal-page line 1
тургия"/>
                                                                                ^
:30: parser error : Premature end of data in tag xportal line 1
тургия"/>
                                                                                ^