phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '48b23267c2eaa36a2cd4f260f2b30637' 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 ('48b23267c2eaa36a2cd4f260f2b30637', -1, 1770477639, 1770477639, 'd849d88f', -4, 0, 0)

Line : 187
File : sessions.php