phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1a8b171457754254b555b3815ecb0c6e' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('1a8b171457754254b555b3815ecb0c6e', -1, 1766482121, 1766482121, 'd849d88f', 0, 0)

Line : 152
File : /home/bsc/v1/phpbb2/includes/sessions.php