Wordpress DB charset changed from utf8mb4 to utf8 causing error
<p>In My wordpress site ,database(mysql) has been upgraded, previously the table charset was utf8mb4 but now it become utf8 and it will not support utf8mb4.
So in my wp-config file I have changed the charset to utf8.</p>

<p>But I am getting error Like this</p>

<p>http error 500</p>

<p><img src="https://i.stack.imgur.com/BNZNa.png" alt="image"></p>