phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '17889e4f1aaac5b5dfe0166c4e4bd0c8' 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 ('17889e4f1aaac5b5dfe0166c4e4bd0c8', -1, 1765832961, 1765832961, 'd849d836', -4, 0, 0)

Line : 187
File : sessions.php