phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1bb8eecf09e48c7d20da0d784e31785d' 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 ('1bb8eecf09e48c7d20da0d784e31785d', -1, 1791809949, 1791809949, '126109ad', 0, 0, 0)

Line : 187
File : sessions.php