phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '644771dcbe1c43d2c04eaabde2613be8' 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 ('644771dcbe1c43d2c04eaabde2613be8', -1, 1714851889, 1714851889, 'c0a80201', -4, 0, 0)

Line : 187
File : sessions.php