How to fix the issues when I update wordpress in php 7

Solution:

Thanks.
I added some codes in the wp-config.php

ini_set(‘log_errors’,’On’);
ini_set(‘display_errors’,’Off’);
ini_set(‘error_reporting’, E_ALL );
define(‘WP_DEBUG’, false);
define(‘WP_DEBUG_LOG’, true);
define(‘WP_DEBUG_DISPLAY’, false);
And I updated the customLoop function in the PeThemeContent.php
public function customLoop($type,$count = 10,$tax = null,$custom = null,$paged = false) {
$args = $this->getPostsQueryArgs($type,$count,$tax,$custom,$paged);
if ($this->current) {
$this->loops[] = $this->current;
}
$this->master->data->postSave();
$this->current = new WP_Query($args);
return $this->current->post_count > 0;
}
So, the issue is solved.