phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7c431b6f902b20a01a4ee795be64ba00' for key 'PRIMARY'

INSERT INTO sub_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7c431b6f902b20a01a4ee795be64ba00', -1, 1771868387, 1771868387, 'd849d878', -4, 0, 0)

Line : 187
File : sessions.php