phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ad7b63af6d0f1b8ab05f71374f2da680' 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 ('ad7b63af6d0f1b8ab05f71374f2da680', -1, 1761556474, 1761556474, 'd849d835', -4, 0, 0)

Line : 187
File : sessions.php