title: Core 'session is active' errors presenting after ProcessWire site migration
body: <blockquote>
    <p>Warning: session_name(): Cannot change session name when session is active in /var/www/html/website/wire/core/Session.php on line 143</p>
    
    <p>Warning: ini_set(): A session is active. You cannot change the session module's ini settings at this time in /var/www/html/website/wire/core/Session.php on line 146</p>
    
    <p>Warning: ini_set(): A session is active. You cannot change the session module's ini settings at this time in /var/www/html/website/wire/core/Session.php on line 147</p>
    
    <p>Warning: ini_set(): A session is active. You cannot change the session module's ini settings at this time in /var/www/html/website/wire/core/Session.php on line 148</p>
    
    <p>Warning: ini_set(): A session is active. You cannot change the session module's ini settings at this time in /var/www/html/website/wire/core/Session.php on line 149</p>
  </blockquote>
  
  <p>PHP 7.3, ProcessWire v.3.0  <a href="https://github.com/processwire/processwire/blob/master/wire/core/Session.php" rel="nofollow noreferrer">https://github.com/processwire/processwire/blob/master/wire/core/Session.php</a></p>
  
  <p>What does this mean, what ini settings should be altered, how do I clear the supposed session?</p>