phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '96d15043fb97de1f8bd4e76a2b5b1329' 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 ('96d15043fb97de1f8bd4e76a2b5b1329', -1, 1766533516, 1766533516, 'd849d82e', -4, 0, 0)

Line : 187
File : sessions.php