phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f224878e7c4e5d9bde2aa36b38e33aaa' 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 ('f224878e7c4e5d9bde2aa36b38e33aaa', -1, 1771455433, 1771455433, 'd849d88e', 18, 0, 0)

Line : 187
File : sessions.php