presta shop 1.7.4.4 is not adding sales tax to the total at check out

[need2011]

Thank you for taking the time to read this🥰

Our presta shop 1.7.4.4 is not adding sales tax to the total at check out, it worked for years but recently stopped.

This problem started when my hosting company upgraded the PHP to 7.2.

I have already checked all the settings and nothing has changed.

I've gone back and forth with my hosting company but they can not undo the upgrade/update.

If there is someone with a solution - biggest thank you -

[Prestashop Addict]

Downgrade PHP version if you can or upgrade PS, your PS version supports to PHP 7.1 max.