phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5a6bccdb760801a5c01c094a167b38e1' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('5a6bccdb760801a5c01c094a167b38e1', -1, 1770106814, 1770106814, 'd849d8a9', 31, 0)

Line : 180
File : /www/includes/sessions.php