phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b640f64469b072257fce3e596b21eee3' 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 ('b640f64469b072257fce3e596b21eee3', -1, 1715771978, 1715771978, '038e72f5', 0, 0, 0)

Line : 187
File : sessions.php