phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a399c30e77463eb23da6895f6bc32e00' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a399c30e77463eb23da6895f6bc32e00', -1, 1769488102, 1769488102, 'd849d83c', 5, 0, 0)

Line : 187
File : sessions.php