phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9aac26a91e0443223daf527d1e94ea43' 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 ('9aac26a91e0443223daf527d1e94ea43', -1, 1763902194, 1763902194, 'd849d80e', -4, 0, 0)

Line : 187
File : sessions.php