phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '159e272943f38c1d425653aeba157a6e' 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 ('159e272943f38c1d425653aeba157a6e', -1, 1766179958, 1766179958, 'd849d8d7', -4, 0, 0)

Line : 187
File : sessions.php