phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '48931437773dfc5ba190eff97ebfcaa4' 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 ('48931437773dfc5ba190eff97ebfcaa4', -1, 1771153086, 1771153086, 'd849d899', -9, 0, 0)

Line : 187
File : sessions.php