Fatal Error: Maximum function nesting level of '100' reached, aborting! - (1 reply)

Fatal Error: Maximum function nesting level of '100' reached, aborting! -

#0 [internal function]: XenForo_Application::handleFatalError()
#1 {main}

array (size=3)
'url' => string 'http://draxusrealms.com/admin.php?add-ons/install' (length=49)
'_GET' =>
array (size=1)
'add-ons/install' => string '' (length=0)
'_POST' =>
array (size=3)
'server_file' => string '' (length=0)
'_xfConfirm' => string '1' (length=1)
'_xfToken' => string '********' (length=8)

How do I fix this problem?