phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ac9c013b3b268030f6a178cdeb2ddfcc' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ac9c013b3b268030f6a178cdeb2ddfcc', -1, 1715057595, 1715057595, 'c0a80201', 2, 0, 0)

Line : 187
File : sessions.php