   #0: _log() called at [/home/bfinch/libphp/src/php/Logger.php:132]
   #1: error() called at [/home/bfinch/libphp/src/php/exception/GeneralException.php:66]
   #2: __construct() called at [/home/bfinch/libphp/src/php/exception/DbException.php:28]
   #3: __construct() called at [/home/bfinch/libphp/src/php/exception/DeleteException.php:44]
   #4: __construct() called at [/home/bfinch/libphp/src/php/do/BaseDo.php:187]
   #5: delete() called at [/home/bfinch/pjax/src/ecommerce/php/commands/CustomShippingClassCommands.php:53]
   #6: addOrModify() called at [/home/bfinch/pjax/src/core/php/Controller.php:567]
   #7: _executeCmdFunc() called at [/home/bfinch/pjax/src/core/php/Controller.php:246]
   #8: run() called at [/home/bfinch/pjax/src/core/htdocs/Pjax.php:759]
   #9: _runAction() called at [/home/bfinch/pjax/src/core/htdocs/Pjax.php:162]
   #10: run() called at [/home/bfinch/pjax/src/core/htdocs/index.php:18]
