phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '693f52ca830baa2159ebdf3c734f1979' 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 ('693f52ca830baa2159ebdf3c734f1979', -1, 1519383159, 1519383159, '369f1e1a', 3, 0, 0)

Line : 187
File : sessions.php