phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7d7a386a8754c6d0f2e1b9d752d68d80' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7d7a386a8754c6d0f2e1b9d752d68d80', -1, 1769332243, 1769332243, 'd849d814', -4, 0, 0)

Line : 187
File : sessions.php