phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '13777590bda364b02b4421ce78cc9d7c' 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 ('13777590bda364b02b4421ce78cc9d7c', -1, 1765041997, 1765041997, '0aff0001', 126, 0, 0)

Line : 199
File : sessions.php