Parse error in libraries/class-tyche-hooks.php on line 189

I just installed and activated the theme on a new wordpress install and this is the error I’m getting:
(Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM in /home/…/wp-content/themes/tyche/inc/libraries/class-tyche-hooks.php on line 189
I have 4.9 version.

Hello there,

I hope you are doing well today.

Please disable any third party plugins that you have active and check to see if the error reoccurs.
If the issue persists then delete the theme and reinstall it.

Best Regards,

It’s a clean install, so no third-party plugins at all, just akismet and hello dolly, but both inactive.
I did install it from the themes section first, without downloading zip theme install file. Than I tried the zip file, but it still shows this error.

Hello there,

Thanks for keeping me updated.

Please use the following plugin to check the PHP version being used as it need to be PHP version 5.6 or higher:

Best Regards,

Thank you, indeed I have 5.4.45

Hey there,

Thank you for replying to this information.

Kindly ask your hosting provider to update your PHP version to PHP 5.6 which is the minimum requirement for WordPress and WooCommerce functionality.
If PHP 7.0 is available you can try that as well as it gives improved performance, but start with 5.6 to be on the safe side.

Best regards,