Error message

• Warning: Cannot modify header information - headers already sent by (output started at /w3/lt.vu.www1036/www/mao/includes/common.inc:2607) in drupal_send_headers() (line 1239 of /w3/lt.vu.www1036/www/mao/includes/bootstrap.inc).
• PDOException: SQLSTATE[HY000]: General error: 1366 Incorrect string value: '\xF0\x9F\x94\xAD P...' for column 'title' at row 1: INSERT INTO {aggregator_item} (title, link, author, description, guid, timestamp, fid) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6); Array ( [:db_insert_placeholder_0] => 🔭 Puiki naktis stebėjimams [:db_insert_placeholder_1] => https://www.facebook.com/468791661960141/posts/1094307482741886 [:db_insert_placeholder_2] => Molėtų astronomijos observatorija [:db_insert_placeholder_3] => 🔭 Puiki naktis stebėjimams. Nors lauke minusinė temperatūra, bet darbas Astronomijos observatorijoje verda.<br> <br> <img src="https://scontent-dus1-1.xx.fbcdn.net/v/t39.30808-6/490352709_1094307496075218_1976603676535038064_n.jpg?stp=dst-jpg_p720x720_tt6&amp;_nc_cat=105&amp;ccb=1-7&amp;_nc_sid=127cfc&amp;_nc_ohc=q6xyA1LfiikQ7kNvwG8INqn&amp;_nc_oc=Adm3XrpJ9F1zzhVfUpaMxkiOOMZTg8DTtpXKaXGv_B3TbFB9EXpaBvHct42CWCXXnC8&amp;_nc_zt=23&amp;_nc_ht=scontent-dus1-1.xx&amp;edm=AJdBtusEAAAA&amp;_nc_gid=tackEWDjbbUw4z8ImnMXAQ&amp;oh=00_AfFSYdGtHQEl_mHBcrzBTKolkck1GKVIavLTZqbk_ShPsg&amp;oe=681D5B6D" /><br/><br/><span style="font-size:12px; color: gray;">(Feed generated with <a href="https://fetchrss.com/feedLink?w=58a2fcbc8a93f81d4e8b4567" target="_blank">FetchRSS</a>)</span> [:db_insert_placeholder_4] => 158605995882_1094307482741886 [:db_insert_placeholder_5] => 1744405656 [:db_insert_placeholder_6] => 1 ) in aggregator_save_item() (line 156 of /w3/lt.vu.www1036/www/mao/modules/aggregator/aggregator.processor.inc).