phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '3c18bc4e645c79be8c84002b82578fd6' 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 ('3c18bc4e645c79be8c84002b82578fd6', -1, 1769966056, 1769966056, 'c0a81010', 18, 0, 0)

Line : 187
File : sessions.php