Invalid argument supplied for foreach()

  • Hi,

    I just installed a new theme on a clean WordPress installation, and I get the following error message:

    Warning: Invalid argument supplied for foreach() in /var/www/vhosts/plantage82.nl/subdomains/testomgeving2/httpdocs/wp-content/themes/appster/page-portfolio.php on line 96

    Instead of this message, you should see the title of a portfolio item and a brief excerpt. See https://testomgeving2.plantage82.nl/?page_id=6

    What does this message mean and how can I fix it?

    Here you can download the entire page-portfolio.php file: https://testomgeving2.plantage82.nl/?page_id=11

    Thanks!

    Taco

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