Fatal error: Declaration of PlektanAPIClient::articlesSimilar(?PlektanAPI\types\ArticleCategory $category, ?string $fromDate = null): ?PlektanAPI\types\ArticlesListResponse must be compatible with PlektanAPI\site\SiteClient::articlesSimilar(?PlektanAPI\types\ArticleCategory $category, ?string $fromDate = null): PlektanAPI\types\ArticlesListResponse in /home/sites/plektan-v2.site/lib/PlektanAPIClient.php on line 28