Mathematics - <div style="border:1px solid #990000;padding-left:20px;margin:0 0 10px 0;"> <h4>A PHP Error was encountered</h4> <p>Severity: Warning</p> <p>Message: Undefined variable $level</p> <p>Filename: views/subject_view.php</p> <p>Line Number: 49</p> <p>Backtrace:</p> <p style="margin-left:10px"> File: /home3/allentea/public_html/interactive/application/views/subject_view.php<br /> Line: 49<br /> Function: _error_handler </p> <p style="margin-left:10px"> File: /home3/allentea/public_html/interactive/application/controllers/Mathematics.php<br /> Line: 28<br /> Function: view </p> <p style="margin-left:10px"> File: /home3/allentea/public_html/interactive/index.php<br /> Line: 315<br /> Function: require_once </p> </div> <div style="border:1px solid #990000;padding-left:20px;margin:0 0 10px 0;"> <h4>A PHP Error was encountered</h4> <p>Severity: Warning</p> <p>Message: Trying to access array offset on value of type null</p> <p>Filename: views/subject_view.php</p> <p>Line Number: 49</p> <p>Backtrace:</p> <p style="margin-left:10px"> File: /home3/allentea/public_html/interactive/application/views/subject_view.php<br /> Line: 49<br /> Function: _error_handler </p> <p style="margin-left:10px"> File: /home3/allentea/public_html/interactive/application/controllers/Mathematics.php<br /> Line: 28<br /> Function: view </p> <p style="margin-left:10px"> File: /home3/allentea/public_html/interactive/index.php<br /> Line: 315<br /> Function: require