phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9012b1381396a9bca72934385c843a02' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9012b1381396a9bca72934385c843a02', -1, 1741071975, 1741071975, '12ddc830', -4, 0, 0)

Line : 187
File : sessions.php