phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '50035b9ac684a5e16e3cb5dce3b67ecf' 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 ('50035b9ac684a5e16e3cb5dce3b67ecf', -1, 1553631668, 1553631668, '36a68554', 17, 0, 0)

Line : 198
File : sessions.php