Can't enter order - Prestashop 1.7.8.5 - Type error: Argument 1 passed to PrestaShop\PrestaShop\Core\Localization\CLDR\ComputingPrecision::getPrecision()

[Skafander]

I have following errors on some orders created with Mollie:

Type error: Argument 1 passed to PrestaShop\PrestaShop\Core\Localization\CLDR\ComputingPrecision::getPrecision() must be of the type int, null given, called in Calculator.php on line 104.

Precision for all currencies is set to 2.

[Rhobur]

You probably have some old addresses not conform e.g. having unaccepted characters, it is a known issue and it has a solution here https://github.com/PrestaShop/PrestaShop/issues/22215