phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '93f828a58f54e7a065ea12bfb74cf4a7' 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 ('93f828a58f54e7a065ea12bfb74cf4a7', -1, 1770904928, 1770904928, 'd849d88f', -4, 0, 0)

Line : 187
File : sessions.php