phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9662ef684a6ee313a0b3402d92a7f9fa' 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 ('9662ef684a6ee313a0b3402d92a7f9fa', -1, 1770303011, 1770303011, 'd849d88f', -4, 0, 0)

Line : 187
File : sessions.php