System error

error:  DBD::mysql::st execute failed: Unknown column 'gdax' in 'field list' at /home/bitcoin/www/btc.html line 61.
context: 
... 
57:  print "<table class=exchange width=900>";
58:  print "<tr><th>Date</th><th>Time</th><th>Bitfinex</th><th>GDAX</th><th>Gemini</th><th>Kraken</th><th>Blockchain</th><th>Average</th></tr>";
59:  my $sql1 = qq/SELECT dt, hour, minute, bitfinex, gdax, gemini, kraken, blockchain, difference FROM bitcoin.ticker ORDER BY dt DESC, hour DESC, minute DESC LIMIT 288;/;
60:  my $sth = $dbh->prepare($sql1);
61:  $sth->execute();
62: 
63:  my $color="black";
64: 
65:  while (my $ref = $sth->fetchrow_hashref()) {
... 
code stack:  /home/bitcoin/www/btc.html:61
raw error






























DBD::mysql::st execute failed: Unknown column 'gdax' in 'field list' at /home/bitcoin/www/btc.html line 61.


Trace begun at /usr/local/share/perl5/HTML/Mason/Exceptions.pm line 125
HTML::Mason::Exceptions::rethrow_exception('DBD::mysql::st execute failed: Unknown column \'gdax\' in \'field list\' at /home/bitcoin/www/btc.html line 61.^J') called at /home/bitcoin/www/btc.html line 61
HTML::Mason::Commands::__ANON__ at /usr/local/share/perl5/HTML/Mason/Component.pm line 135
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x7f2661771148)') called at /usr/local/share/perl5/HTML/Mason/Request.pm line 1297
eval {...} at /usr/local/share/perl5/HTML/Mason/Request.pm line 1292
HTML::Mason::Request::comp(undef, undef, undef) called at /usr/local/share/perl5/HTML/Mason/Request.pm line 481
eval {...} at /usr/local/share/perl5/HTML/Mason/Request.pm line 481
eval {...} at /usr/local/share/perl5/HTML/Mason/Request.pm line 433
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0x7f2660031168)') called at /usr/local/share/perl5/HTML/Mason/ApacheHandler.pm line 168
HTML::Mason::Request::ApacheHandler::exec('HTML::Mason::Request::ApacheHandler=HASH(0x7f2660031168)') called at /usr/local/share/perl5/HTML/Mason/ApacheHandler.pm line 825
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x7f265f92f3a8)', 'Apache2::RequestRec=SCALAR(0x7f2661775a50)') called at (eval 104) line 8
HTML::Mason::ApacheHandler::handler('HTML::Mason::ApacheHandler', 'Apache2::RequestRec=SCALAR(0x7f2661775a50)') called at -e line 0
eval {...} at -e line 0