phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1299e1a6539e00298d9992f824d32ceb' 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 ('1299e1a6539e00298d9992f824d32ceb', -1, 1768372392, 1768372392, 'c0a8100c', -501, 0, 0)

Line : 187
File : sessions.php