phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'fdd7b4aa685a89a64e7628b2a5010141' 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 ('fdd7b4aa685a89a64e7628b2a5010141', -1, 1787761992, 1787761992, 'd849d986', 0, 0, 0)

Line : 187
File : sessions.php