Error when editing context

When I click edit on one of the Context objects on the Context area I get the following error. I increased my database packet size but the problem has not gone away. Any clue whit might be causing the problem.

"PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: SELECT nt.* FROM {node_type} nt WHERE (disabled = :db_condition_placeholder_0) ORDER BY nt.type ASC; Array ( [:db_condition_placeholder_0] => 0 ) in _node_types_build() (line 703 of C:\XAMMP\htdocs\martplug\modules\node\node.module)."