Notice: Array to string conversion in /var/www/vhosts/disdanceproject.host215.checkdomain.de/htdocs/site/plugins/tagcloud.php on line 22

Fatal error: Uncaught Error: Function name must be a string in /var/www/vhosts/disdanceproject.host215.checkdomain.de/htdocs/site/plugins/tagcloud.php:22 Stack trace: #0 /var/www/vhosts/disdanceproject.host215.checkdomain.de/htdocs/site/templates/blog.php(56): tagcloud(Object(page), Array) #1 /var/www/vhosts/disdanceproject.host215.checkdomain.de/htdocs/kirby/lib/template.php(36): require('/var/www/vhosts...') #2 /var/www/vhosts/disdanceproject.host215.checkdomain.de/htdocs/kirby/lib/template.php(25): tpl::loadFile('/var/www/vhosts...', Array, true) #3 /var/www/vhosts/disdanceproject.host215.checkdomain.de/htdocs/kirby/lib/site.php(148): tpl::load('blog', false, true) #4 /var/www/vhosts/disdanceproject.host215.checkdomain.de/htdocs/kirby/system.php(65): site->load() #5 /var/www/vhosts/disdanceproject.host215.checkdomain.de/htdocs/index.php(71): require_once('/var/www/vhosts...') #6 {main} thrown in /var/www/vhosts/disdanceproject.host215.checkdomain.de/htdocs/site/plugins/tagcloud.php on line 22