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• Notice: Trying to access array offset on value of type null in include() (regel 16 van sites/all/themes/pika/templates/portfolio/views-isotope-filter-block--portfolio.tpl.php).
• Notice: Undefined variable: isotope_filter_classes in include() (regel 16 van sites/all/themes/pika/templates/portfolio/views-isotope-filter-block--portfolio.tpl.php).
• Notice: Trying to access array offset on value of type null in include() (regel 16 van sites/all/themes/pika/templates/portfolio/views-isotope-filter-block--portfolio.tpl.php).
• Notice: Undefined variable: isotope_filter_classes in include() (regel 16 van sites/all/themes/pika/templates/portfolio/views-isotope-filter-block--portfolio.tpl.php).
• Notice: Trying to access array offset on value of type null in include() (regel 16 van sites/all/themes/pika/templates/portfolio/views-isotope-filter-block--portfolio.tpl.php).