Errors/site broken after deactivating plugin

After deactivating the plugin the website gives errors. These errors are visible for everyone. How to fix this?

The errors:
Warning: include_once(/home/hetfysio/public_html/wp-content/plugins/hummingbird-performance/core/class-utils.php): failed to open stream: No such file or directory in /home/hetfysio/public_html/wp-content/advanced-cache.php on line 24

Warning: include_once(): Failed opening ‘/home/hetfysio/public_html/wp-content/plugins/hummingbird-performance/core/class-utils.php’ for inclusion (include_path=’.:/usr/local/php71/pear’) in /home/hetfysio/public_html/wp-content/advanced-cache.php on line 24

Warning: include_once(/home/hetfysio/public_html/wp-content/plugins/hummingbird-performance/core/class-module.php): failed to open stream: No such file or directory in /home/hetfysio/public_html/wp-content/advanced-cache.php on line 26

Warning: include_once(): Failed opening ‘/home/hetfysio/public_html/wp-content/plugins/hummingbird-performance/core/class-module.php’ for inclusion (include_path=’.:/usr/local/php71/pear’) in /home/hetfysio/public_html/wp-content/advanced-cache.php on line 26

Warning: include_once(/home/hetfysio/public_html/wp-content/plugins/hummingbird-performance/core/modules/class-page-cache.php): failed to open stream: No such file or directory in /home/hetfysio/public_html/wp-content/advanced-cache.php on line 28

Warning: include_once(): Failed opening ‘/home/hetfysio/public_html/wp-content/plugins/hummingbird-performance/core/modules/class-page-cache.php’ for inclusion (include_path=’.:/usr/local/php71/pear’) in /home/hetfysio/public_html/wp-content/advanced-cache.php on line 28

• This topic was modified 6 years, 3 months ago by evasophie2020.

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