phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1b1b6d62d21fef36d3b7b675f25d7c09' 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 ('1b1b6d62d21fef36d3b7b675f25d7c09', -1, 1765877377, 1765877377, 'd849d836', -4, 0, 0)

Line : 187
File : sessions.php