phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '78c309b8f45407e2f7120dc3dcbeb4b1' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('78c309b8f45407e2f7120dc3dcbeb4b1', -1, 1715781034, 1715781034, '030f15bf', -4, 0, 0)

Line : 187
File : sessions.php