phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '56b19737e1abb9e387ea10df63998fee' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('56b19737e1abb9e387ea10df63998fee', -1, 1764770673, 1764770673, 'd849d8de', -4, 0, 0)

Line : 187
File : sessions.php