phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ad60335f1aa7782ab9d935cefc10360a' 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 ('ad60335f1aa7782ab9d935cefc10360a', -1, 1767408508, 1767408508, 'd849d819', 4, 0, 0)

Line : 187
File : sessions.php