Dropdown list display error on back office

[hisapon]

Hello.
I installed prestashop 1.7.6.5 to VPS server.
After installed, I accessed configure> General page to Enable SSL setting.
But I saw Dropdown list display error on the page (Please see attached image).

And those items cannot be selected or clicked.
The other Yes No buttons can be toggled.
The switch does not save the changes when I press the SAVE button.

I have tried it with other older versions of Prestashop(1.7.6.4, 1.7.6.3, 1.7.6.1)
Only 1.7.7.0 Beta1 was displayed successfully.
But this version is unfavorable to me because of the theme I use.

Please give some advice.

VPS Server: CentOS7+Apache2.4.6+PHP7.4.6

[Carl20]

I just installed PrestaShop 1.7.6 and have axactly the same problem 

[hisapon]

Hello.

I solved this problem by myself.
The problem was the version of PHP.

I removed PHP7.4 and installed PHP7.2 and it worked.

https://devdocs.prestashop.com/1.7/basics/installation/system-requirements/

 

thank you

[Carl20]

Thank you for your help!
I work with PrestaShop 1.7.6.5 (fresh installation) and had PHP 7.4 installed. Menu's don't work in the back office and you cannot select or safe changes. In my case Installing PHP 7.3 solved the problem.

Carl

[ruilong]

You may also change in the file

\src\PrestaShopBundle\Resources\views\Admin\TwigTemplateForm\form_div_layout.html.twig
find block widget_attributes

{%- block widget_attributes -%}
change
id="{{ id }}" name="{{ full_name }}"
to
{{- " " -}} id="{{ id }}" name="{{ full_name }}"
This will add a space before the id attribute and the selects will work on php 7.4