phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9802c823efca73c02cce1f49160c4cbb' 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 ('9802c823efca73c02cce1f49160c4cbb', -1, 1762700139, 1762700139, 'd849d817', -4, 0, 0)

Line : 187
File : sessions.php