phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '28ab1f11eb4e4c221750e1a96d8b8d43' 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 ('28ab1f11eb4e4c221750e1a96d8b8d43', -1, 1766006297, 1766006297, 'd849d817', -4, 0, 0)

Line : 187
File : sessions.php