phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6a2d5c23671ca1f5f44c1adcad20cb53' 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 ('6a2d5c23671ca1f5f44c1adcad20cb53', -1, 1558622812, 1558622812, '36a72ff8', -9, 0, 0)

Line : 198
File : sessions.php