phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ae859896b4c0e826a0a185e5beb59cb3' 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 ('ae859896b4c0e826a0a185e5beb59cb3', -1, 1769506624, 1769506624, 'd849d814', -4, 0, 0)

Line : 187
File : sessions.php