phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '03ff2db6945b02aaa021c19b39c3b0c2' 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 ('03ff2db6945b02aaa021c19b39c3b0c2', -1, 1767107479, 1767107479, 'd849d819', 8, 0, 0)

Line : 187
File : sessions.php