Error message

Warning: count(): Parameter must be an array or an object that implements Countable in _term_reference_tree_output_list_level() (line 202 of /var/www/html/paradigmaps.geo.uni-halle.de/klimawandel/sites/all/modules/term_reference_tree/term_reference_tree.widget.inc).
Warning: count(): Parameter must be an array or an object that implements Countable in _term_reference_tree_output_list_level() (line 202 of /var/www/html/paradigmaps.geo.uni-halle.de/klimawandel/sites/all/modules/term_reference_tree/term_reference_tree.widget.inc).
Warning: count(): Parameter must be an array or an object that implements Countable in _term_reference_tree_output_list_level() (line 202 of /var/www/html/paradigmaps.geo.uni-halle.de/klimawandel/sites/all/modules/term_reference_tree/term_reference_tree.widget.inc).

H2O EXTREM - Extremereignisse durch Wasser verstehen

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