phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a780277cc584ecc69fec0ef33f69983f' 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 ('a780277cc584ecc69fec0ef33f69983f', -1, 1759571216, 1759571216, 'd849d8d0', -9, 0, 0)

Line : 187
File : sessions.php