phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '88a15a42c320405ab452b6f43c953209' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('88a15a42c320405ab452b6f43c953209', -1, 1755003242, 1755003242, 'd849d88f', 2, 0)

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