phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '27e3155310e325fd58a7b182b1506dee' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('27e3155310e325fd58a7b182b1506dee', -1, 1770064914, 1770064914, 'd849d817', -4, 0, 0)

Line : 187
File : sessions.php