phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ed71d2c3548d35deef49ca1250600ce5' 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 ('ed71d2c3548d35deef49ca1250600ce5', -1, 1770005205, 1770005205, 'd849d817', -4, 0, 0)

Line : 187
File : sessions.php