phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '48cf2d75480b5794570a25ea7631c80c' 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 ('48cf2d75480b5794570a25ea7631c80c', -1, 1770591434, 1770591434, 'd849d876', 2, 0, 0)

Line : 187
File : sessions.php