phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8a12ec23451c4fa72f02509e272e789d' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8a12ec23451c4fa72f02509e272e789d', -1, 1765854805, 1765854805, '00000000', 18, 0, 0)

Line : 187
File : sessions.php