}

	/**
	 * Clears all of our cache.
	 *
	 * @since 4.1.5
	 *
	 * @return void
	 */
	public function clear() {
		if ( $this->prefix ) {
			$this->clearPrefix( '' );

			return;
		}

		// If we find the activation redirect, we'll need to reset it after clearing.
		$activationRedirect = $this->get( 'activation_redirect' );

		aioseo()->core->db->truncate( $this->table )->run();

		$this->clearStatic();

		if ( $activationRedirect ) {
			$this->update( 'activation_redirect', $activationRedirect, 30 );
		}

		// Bust the tableExists and columnExists cache.
		aioseo()->internalOptions->database->installedTables = '';
	}

	/**
	 * Clears all of our cache under a certain prefix.
	 *
	 * @since 4.1.5
	 *
	 * @param  string $prefix A prefix to clear or empty to clear everything.
	 * @return void
	 */
	public function clearPrefix( $prefix ) {
		$prefix = $this->prepareKey( $prefix );

		aioseo()->core->db->delete( $this->table )
			->whereRaw( "`key` LIKE '$prefix%'" )
			->run();

		$this->clearStaticPrefix( $prefix );
	}

	/**
	 * Clears all of our static in-memory cache of a prefix.
	 *
	 * @since 4.1.5
	 *
	 * @param  string $prefix A prefix to clear.
	 * @return void
	 */
	private function clearStaticPrefix( $prefix ) {
		$prefix = $this->prepareKey( $prefix );
		foreach ( array_keys( self::$cache ) as $key ) {
			if ( 0 === strpos( $key, $prefix ) ) {
				unset( self::$cache[ $key ] );
			}
		}
	}

	/**
	 * Clears all of our static in-memory cache.
	 *
	 * @since 4.1.5
	 *
	 * @param  string $key A key to clear.
	 * @return void
	 */
	private function clearStatic( $key = null ) {
		if ( empty( $key ) ) {
			self::$cache = [];

			return;
		}

		unset( self::$cache[ $this->prepareKey( $key ) ] );
	}

	/**
	 * Returns the cache table name.
	 *
	 * @since 4.1.5
	 *
	 * @return string
	 */
	public function getTableName() {
		return $this->table;
	}
}<br />
<b>Fatal error</b>:  Uncaught Error: Class &quot;AIOSEO\Plugin\Common\Utils\Cache&quot; not found in /home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Core/Core.php:114
Stack trace:
#0 /home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/app/AIOSEO.php(214): AIOSEO\Plugin\Common\Core\Core-&gt;__construct()
#1 /home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/app/AIOSEO.php(95): AIOSEO\Plugin\AIOSEO-&gt;preLoad()
#2 /home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/app/AIOSEO.php(76): AIOSEO\Plugin\AIOSEO-&gt;init()
#3 /home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/app/AIOSEO.php(414): AIOSEO\Plugin\AIOSEO::instance()
#4 /home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/all_in_one_seo_pack.php(96): aioseo()
#5 /home/valigeria/public_html/wp-settings.php(517): include_once('/home/valigeria...')
#6 /home/valigeria/public_html/wp-config.php(111): require_once('/home/valigeria...')
#7 /home/valigeria/public_html/wp-load.php(50): require_once('/home/valigeria...')
#8 /home/valigeria/public_html/wp-blog-header.php(13): require_once('/home/valigeria...')
#9 /home/valigeria/public_html/index.php(17): require('/home/valigeria...')
#10 {main}
  thrown in <b>/home/valigeria/public_html/wp-content/plugins/all-in-one-seo-pack-pro/app/Common/Core/Core.php</b> on line <b>114</b><br />