Update Broke Site – Depreciation file issue

The plugin leverages scalar return type hints to ensure everything works with the correct types. The error you’re seeing is the error that PHP 5.6 or lower would throw when encountering the following code:

function function_name(): int {}

The extra int in there is the return type, which is valid as of PHP 7.0 => http://php.net/manual/en/functions.returning-values.php#functions.returning-values.type-declaration

Can you confirm the version of PHP you’re using?

My first recommendation: upgrade to PHP 7.1 (at least). PHP 7.0 was end of life last month. So was 5.6. Neither are receiving security updates any longer.

If you can’t upgrade on your own, contact your hosting provider. They can help.