After running without any issues suddenly getting two error messages at top of all pages. Any idea as to cause and solution please?

Warning: Invalid argument supplied for foreach() in /home/rhovan/public_html/gallery/zp-core/controller.php on line 41

Warning: Cannot modify header information - headers already sent by (output started at /home/rhovan/public_html/gallery/zp-core/controller.php:41) in /home/rhovan/public_html/gallery/index.php on line 12

To add to the above, the problem appears to be related to a server upgrade to PHP 5 overnight by host.

What is likely to be needed to get the gallery going again please.

The quick answer is to turn off the Captcha option. The longer answer is to modify the code in controller.php

Currently it reads:
`if (getOption('Use_Captcha')) {

$d = getOption('last_captcha_purge');

$expire = time() - 86400;

if ($d > $expire) {

chdir(SERVERCACHE . "/");

$filelist = glob('code_*.png');

foreach ($filelist as $file) {

  $file = SERVERCACHE . "/" . $file;

  if (filemtime(&#36;file) < &#36;expire) {

    unlink(&#36;file);

  }

}

}

setOption('last_captcha_purge', time());

}`

It needs to say:
`if (getOption('Use_Captcha')) {

$d = getOption('last_captcha_purge');

$expire = time() - 86400;

if ($d > $expire) {

chdir(SERVERCACHE . "/");

$filelist = glob('code_*.png');

if ($filelist) {

foreach ($filelist as $file) {

  $file = SERVERCACHE . "/" . $file;

  if (filemtime(&#36;file) < &#36;expire) {

    unlink(&#36;file);

  }

}

}

}

setOption('last_captcha_purge', time());

}`