Critical Link error

Hi - (Using SC8) Everything was going perfectly until about 5-days when I started getting the below error when adding an html field or button, and trying to LINK to another application. As soon and I select the desired application it throws an error (see below) and stops me from completing the link. Please advise as this has halted development,

Cannot modify header information - headers already sent | Script: …/scriptcase/devel/class/page/nmPage.class.php linha: 466

For those of you having the same issue I found the answer.
PHP obtains input variables from HTML forms (through GET and POST requests), as well as from any cookies enabled on a page. By default, the maximum number of input variables allowed for PHP scripts is set to 1000. You can change this amount by setting the max_input_vars directive in a php.ini file.