I need to override the following file function in my custom module

File - Mageplaza\Blog\Block\Post\View Function Name - getBlogTitle()

As I need to remove '- Blog | Ideas & Advice | Carpet Call' from the meta title

• When I override using preference method, I am getting following error

Exception #0 (Magento\Framework\Exception\ValidatorException): Invalid template file: 'post/head.phtml' in module: 'Carpetcall_Blogs'

block's name: 'mpblog.post.head'

Please advice.

• Following is the new file changes, I made

    <?php
  

  namespace Carpetcall\Blogs\Block\Post; class View extends \Mageplaza\Blog\Block\Post\View {

  public function getBlogTitle($meta = false) {

     $blogTitle = parent::getBlogTitle($meta);
  
        $post = $this->getBlogObject();
        if (!$post) {
            return $blogTitle;
        }
  
        if ($meta) {
            if ($post->getMetaTitle()) {
                $blogTitle[] = $post->getMetaTitle();
            } else {
                $blogTitle[] = ucfirst($post->getName());
            }
  
            return $blogTitle;
        }
  
        return ucfirst($post->getName());
  

  }

  }

I need to override the following file function in my custom module

File - Mageplaza\Blog\Block\Post\View Function Name - getBlogTitle()

As I need to remove '- Blog | Ideas & Advice | Carpet Call' from the meta title

• When I override using preference method, I am getting following error

Exception #0 (Magento\Framework\Exception\ValidatorException): Invalid template file: 'post/head.phtml' in module: 'Carpetcall_Blogs'

block's name: 'mpblog.post.head'

Please advice. Following is the new file changes, I made

<?php

namespace Carpetcall\Blogs\Block\Post;

class View extends \Mageplaza\Blog\Block\Post\View
{
    public function getBlogTitle($meta = false)
    {
        $blogTitle = parent::getBlogTitle($meta);

        $post = $this->getBlogObject();
        if (!$post) {
            return $blogTitle;
        }

        if ($meta) {
            if ($post->getMetaTitle()) {
                $blogTitle[] = $post->getMetaTitle();
            } else {
                $blogTitle[] = ucfirst($post->getName());
            }

            return $blogTitle;
        }

        return ucfirst($post->getName());
    }
}