phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '849fd72111a507f23375448b2ca1eb99' 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 ('849fd72111a507f23375448b2ca1eb99', -1, 1762226732, 1762226732, 'd849d887', 4, 0, 0)

Line : 187
File : sessions.php