Fatal error: Maximum execution time of 30 seconds exceeded in S:\wpsites\wp_vrca\wp-includes\post.php on line 20

Fatal error: Uncaught Error: Call to undefined function wp_kses_normalize_entities() in S:\wpsites\wp_vrca\wp-includes\formatting.php:4316 Stack trace: #0 S:\wpsites\wp_vrca\wp-includes\class-wp-fatal-error-handler.php(190): esc_url('https://wordpre...') #1 S:\wpsites\wp_vrca\wp-includes\class-wp-fatal-error-handler.php(147): WP_Fatal_Error_Handler->display_default_error_template(Array, false) #2 S:\wpsites\wp_vrca\wp-includes\class-wp-fatal-error-handler.php(52): WP_Fatal_Error_Handler->display_error_template(Array, false) #3 [internal function]: WP_Fatal_Error_Handler->handle() #4 {main} thrown in S:\wpsites\wp_vrca\wp-includes\formatting.php on line 4316