phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'bb1fad4b0b6a84f9edd2d5b2293af66a' 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 ('bb1fad4b0b6a84f9edd2d5b2293af66a', -1, 1769633160, 1769633160, 'd849d8d0', -4, 0, 0)

Line : 187
File : sessions.php