phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a856f0c07352dd0b66ed10101f040dbb' 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 ('a856f0c07352dd0b66ed10101f040dbb', -1, 1714298300, 1714298300, '0390faa9', 5, 0, 0)

Line : 187
File : sessions.php