Provisioning Module | Custom function calls for client area

[djshadowxm81]

I'm not sure what i'm doing wrong. But i keep getting this error when trying to call custom functions from the module via client area buttons. Unauthorized Access Attempt is what i get. Im using this within the ClientArea function

<form method="post" action="clientarea.php?action=productdetails">

<input type="hidden" name="id" value="{$serviceid}" />

<input type="hidden" name="modop" value="custom" />

<input type="hidden" name="a" value="reboot" />

<input type="submit" value="Reboot Server" />

</form>

the button shows up but i get that error when i click it.