phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'efb73324c062a88c1646a6bb8af02ded' 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 ('efb73324c062a88c1646a6bb8af02ded', -1, 1770997899, 1770997899, 'd849d809', -4, 0, 0)

Line : 187
File : sessions.php