phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f3918ffaed06c1c8d0809c009b78496d' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f3918ffaed06c1c8d0809c009b78496d', -1, 1770467441, 1770467441, 'd849d89c', -9, 0, 0)

Line : 187
File : sessions.php