Internal error (invalid XML)

:21: parser error : Opening and ending tag mismatch: p line 21 and hidden
аргарита

Роман «Масте ^ :21: parser error : Opening and ending tag mismatch: p line 21 and text_annotation /book-title>

Роман «Масте ^ :21: parser error : Opening and ending tag mismatch: annotation line 21 and genre_book et-date date_add="2018-01-19"/> ^ :54: parser error : Opening and ending tag mismatch: title-info line 18 and biblio_subgenre_by_pop op/" post="subgenre=194" page="1" pages="0" needq="0"/> ^ :54: parser error : Opening and ending tag mismatch: hidden line 18 and page-data ubgenre=194" page="1" pages="0" needq="0"/> ^ :54: parser error : Opening and ending tag mismatch: text_annotation line 18 and xportal-page value="2013"/> ^ :54: parser error : Opening and ending tag mismatch: genre_book line 18 and xportal value="186515"/> ^ :54: parser error : Premature end of data in tag biblio_subgenre_by_pop line 12 value="186515"/> ^ :54: parser error : Premature end of data in tag page-data line 12 value="186515"/> ^ :54: parser error : Premature end of data in tag xportal-page line 1 value="186515"/> ^ :54: parser error : Premature end of data in tag xportal line 1 value="186515"/> ^