phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '78144374c8fe836fc6d90b1232f6dc9c' 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 ('78144374c8fe836fc6d90b1232f6dc9c', -1, 1749961512, 1749961512, 'd849d8c2', 81, 0, 0)

Line : 187
File : sessions.php