peq db editor error

[swootton]

When I try to log in as admin I get this error

Warning: Undefined array key "guest" in C:\xampp\htdocs\peqphpeditor-master\classes\session.php on line 12

Fatal error: Uncaught mysqli_sql_exception: Table 'peq.peq_admin' doesn't exist in C:\xampp\htdocs\peqphpeditor-master\classes\mysqli.php:39 Stack trace: #0 C:\xampp\htdocs\peqphpeditor-master\classes\mysqli.php(39): mysqli_query(Object(mysql), 'SELECT password...') #1 C:\xampp\htdocs\peqphpeditor-master\classes\session.php(17): mysql->query_assoc('SELECT password...') #2 C:\xampp\htdocs\peqphpeditor-master\classes\session.php(132): session::login('admin', 'password') #3 C:\xampp\htdocs\peqphpeditor-master\index.php(10): require_once('C:\\xampp\\htdocs...') #4 {main} thrown in C:\xampp\htdocs\peqphpeditor-master\classes\mysqli.php on line 39
I went through it step by step and its not working could someone help me out please