phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'bd3763be4fad2249307be7ad8f691438' 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 ('bd3763be4fad2249307be7ad8f691438', -1, 1770118052, 1770118052, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php