Ошибка при конвертировании IPB 2.3.4 в PHPbb 3.0.10

Ошибка при конвертировании форума с IPB 2.3.4 в PHPbb 3.0.10

:)

Помогите советами как устранить ошибку =)

Заранее спасибо =)

Общая ошибка

SQL ERROR [ mysqli ]



Incorrect string value: '\xC4\xE0' for column 'poll_option_text' at row 1 [1366]



SQL



INSERT INTO phpbb119_poll_options (poll_option_id, poll_option_text, poll_option_total, topic_id) VALUES (1, '��', 11, 0)



BACKTRACE



FILE: [ROOT]/includes/db/mysqli.php

LINE: 182

CALL: dbal->sql_error()



FILE: [ROOT]/install/convertors/functions_ipb23.php

LINE: 40

CALL: dbal_mysqli->sql_query()



FILE: (not given by php)

LINE: (not given by php)

CALL: phpbb_poll()



FILE: [ROOT]/install/install_convert.php

LINE: 2069

CALL: call_user_func_array()



FILE: [ROOT]/install/install_convert.php

LINE: 1276

CALL: install_convert->process_row()



FILE: [ROOT]/install/install_convert.php

LINE: 203

CALL: install_convert->convert_data()



FILE: [ROOT]/install/index.php

LINE: 326

CALL: install_convert->main()



FILE: [ROOT]/install/index.php

LINE: 203

CALL: module->load()