Error Property Combination->price length

[Mimmo]

Good morning,

I'm completing an eCommerce with Prestashop 1.6.1.10.

A few days ago I received an error in entering the price in the combination of products.

If I enter a comma number in the excluded tax field, I receive the following error:

"Property Combination-> price length (50) must be between 0 and 20"

This does not happen if I enter a number without a comma.

I also noticed that all indicators such as "items not available" and "size of a photo" have increased the number of digits in the display.

I enclose the screenshots to better understand the errors.

Thanks for your help.

[Mimmo]

Nobody who can help me

[musicmaster]

Did you try using a dot instead of a comma.

[Mimmo]

Thanks for the reply. unfortunately I tried both ways but the problem head.

[musicmaster]

What modules you have installed? It looks like your Prestashop has floats where you would expect integers. So the obvious question is whether you have some module or modification that makes those changes.

[Mimmo]

no, I have no form for these settings. I have not updated anything or installed anything.

[Mimmo]

if I try to increase the price through the impact on the price in the product combination, using two decimal places I get the following error:

Property Combination->unit_price_impact length (50) must be between 0 and 20

[musicmaster]

If you want you can PM me access data to mysql and the backoffice. Then I can have a closer look. 

[Mimmo]

unfortunately the problem remains, nobody can help me.

[Mimmo]

beyond the problem already reported, also reflected:

Property SpecificPrice->reduction is not valid

thank's