Prestashop 1.7 classic theme - empty page after clicking sign in

[samo70]

Hello, when I click on sign in button in header of new classic theme of prestashop 1.7, I get only this (see picture)

 

 

Where can be a problem? Thanks

[Knowband Plugins]

Please try repeating the step after enabling error debugging and post the issues shown here so that we can help you accordingly.

 

FYI, to enable error debugging you can follow the steps below.

 

- open file: config/defines.inc.php (using FTP or hosting control panel)

 

- change false-->true:

 

define('_PS_MODE_DEV_', false);

 

define('_PS_MODE_DEV_', true);

[samo70]

When I set PS_MODE_DEV to true, the login page appears correct with no errors

 

 

when I set PS_MODE_DEV  back to false, login page have not appeared again :-/

[hainn84]

Strange problem, i think you need check tpl file again to make sure it is correct or anyone edit it, it ís authentication.tpl file in \themes\classic\templates\customer folder.

[samo70]

I have installed new version of PS 1.7.1.1 instead of 1.7.1.0 and it works fine.

[Rasq]

Try to downgrade Php version to 5.6...if is newest