Parameter must be an array or an object that implements Countable

Sun, 19 Aug 2018 10:22:35 +0000
Message: count(): Parameter must be an array or an object that implements Countable
PHP version: 7.2.8
WoltLab Suite version: 3.0.17 pl 1
Request URI: /news/acp/index.php?rss-feed-add/
Referrer: http://www.botendeszorns.de/news/acp/index.php?rss-feed-list/
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36
Peak Memory Usage: 4812192/134217728
======
Error Class: wcf\system\exception\ErrorException
Error Message: count(): Parameter must be an array or an object that implements Countable
Error Code: 0
File: /var/www/vhosts/botendeszorns.de/httpdocs/lib/system/WCF.class.php (335)
Extra Information: -
Stack Trace: [{"file":"\/var\/www\/vhosts\/botendeszorns.de\/httpdocs\/acp\/templates\/compiled\/0_news_1_rssFeedAdd.php","line":918,"function":"handleError","class":"wcf\\system\\WCF","type":"::","args":[2,"count(): Parameter must be an array or an object that implements Countable","\/var\/www\/vhosts\/botendeszorns.de\/httpdocs\/acp\/templates\/compiled\/0_news_1_rssFeedAdd.php",918,{"templateName":"[redacted]","application":"[redacted]","sendHeaders":"[redacted]","sourceFilename":"[redacted]","compiledFilename":"[redacted]","metaDataFilename":"[redacted]","metaData":"[redacted]","__langCompilerTemplatePluginOutput":"[redacted]","_foreach_a29d766b4bab3f71e9e01a9c34552db69813962e":"[redacted]","_foreach_a29d766b4bab3f71e9e01a9c34552db69813962e_cnt":"[redacted]","_foreach_95e4702d942f49132ea4805898c0a8a95e3064fb":"[redacted]","_foreach_95e4702d942f49132ea4805898c0a8a95e3064fb_cnt":"[redacted]","_foreach_814c33acd4d6f687f52846ce5cc9fa9930371b87":"[redacted]","_foreach_814c33acd4d6f687f52846ce5cc9fa9930371b87_cnt":"[redacted]","_foreach_3c29ee97c5224eed2daf4c80c3372172133bd9d0":"[redacted]","_foreach_3c29ee97c5224eed2daf4c80c3372172133bd9d0_cnt":"[redacted]","_foreach_3055ad7d28d7be6234691aa811dd2d0f71beb300":"[redacted]","_foreach_3055ad7d28d7be6234691aa811dd2d0f71beb300_cnt":"[redacted]","_foreach_430e6e34120d6ad50ee2684386b9f02dc75daba9":"[redacted]","_foreach_430e6e34120d6ad50ee2684386b9f02dc75daba9_cnt":"[redacted]","_foreach_091dfbb3622c957e3fc192497d4f994715b7cf17":"[redacted]","_foreach_091dfbb3622c957e3fc192497d4f994715b7cf17_cnt":"[redacted]","_foreach_898c82ae79b3801b5c5dfbc4593520527dc762f8":"[redacted]","_foreach_898c82ae79b3801b5c5dfbc4593520527dc762f8_cnt":"[redacted]"}]},{"file":"\/var\/www\/vhosts\/botendeszorns.de\/httpdocs\/lib\/system\/template\/TemplateEngine.class.php","line":320,"args":["\/var\/www\/vhosts\/botendeszorns.de\/httpdocs\/acp\/templates\/compiled\/0_news_1_rssFeedAdd.php"],"function":"include","class":"","type":""},{"file":"\/var\/www\/vhosts\/botendeszorns.de\/httpdocs\/lib\/page\/AbstractPage.class.php","line":308,"function":"display","class":"wcf\\system\\template\\TemplateEngine","type":"->","args":["rssFeedAdd","news"]},{"file":"\/var\/www\/vhosts\/botendeszorns.de\/httpdocs\/lib\/page\/AbstractPage.class.php","line":103,"function":"show","class":"wcf\\page\\AbstractPage","type":"->","args":[]},{"file":"\/var\/www\/vhosts\/botendeszorns.de\/httpdocs\/lib\/system\/request\/Request.class.php","line":83,"function":"__run","class":"wcf\\page\\AbstractPage","type":"->","args":[]},{"file":"\/var\/www\/vhosts\/botendeszorns.de\/httpdocs\/lib\/system\/request\/RequestHandler.class.php","line":94,"function":"execute","class":"wcf\\system\\request\\Request","type":"->","args":[]},{"file":"\/var\/www\/vhosts\/botendeszorns.de\/httpdocs\/news\/acp\/index.php","line":9,"function":"handle","class":"wcf\\system\\request\\RequestHandler","type":"->","args":["news",true]}]