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<b>Notice</b>:  Undefined index: user_id in <b>/home/codecany/domains/mgcoder.net/public_html/template/join_author/header.php</b> on line <b>31</b><br />
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<b>Fatal error</b>:  Uncaught PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'user_id' cannot be null in /home/codecany/domains/mgcoder.net/public_html/core/classes/class.user_settings.php:126
Stack trace:
#0 /home/codecany/domains/mgcoder.net/public_html/core/classes/class.user_settings.php(126): PDOStatement-&gt;execute()
#1 /home/codecany/domains/mgcoder.net/public_html/core/classes/class.user_settings.php(155): User_settings-&gt;add_new_user_settings(NULL, '[&quot;&quot;,&quot;&quot;,&quot;&quot;,&quot;&quot;,&quot;&quot;...', '[&quot;default-portf...', '[&quot;1&quot;,&quot;1&quot;,&quot;0&quot;,&quot;0...', '[&quot;&quot;,&quot;&quot;,&quot;&quot;,&quot;&quot;,&quot;&quot;...', '[&quot;&quot;,&quot;&quot;,&quot;&quot;,&quot;&quot;,&quot;0...')
#2 /home/codecany/domains/mgcoder.net/public_html/core/classes/class.user_settings.php(172): User_settings-&gt;user_settings_init(NULL)
#3 /home/codecany/domains/mgcoder.net/public_html/template/join_author/header.php(31): User_settings-&gt;get_user_setting(NULL)
#4 /home/codecany/domains/mgcoder.net/public_html/template/join_author/join.php(4): require_once('/home/codecany/...')
#5 /home/codecany/domains/mgcoder.net/public_html/route.php(390): requi in <b>/home/codecany/domains/mgcoder.net/public_html/core/classes/class.user_settings.php</b> on line <b>126</b><br />