unable to access admin screen

[vinoo]

hi all,

unable to access admin screen if the prestashop is installed in the domain with out directory

below is the error message

This page isn’t working

HTTP ERROR 500

 

Thanks in advance

[nikoz]

Can you access your frontend ?
Have you deleted the installation directory ?

For more information to inspect the problem open config/defines.inc.php file

 find this line: define('_PS_MODE_DEV_', false);
Replace it with: define('_PS_MODE_DEV_', true);

Refresh the admin page and you will get some extra information about the problem

[vinoo]

Whoops, looks like something went wrong.

(1/1) RuntimeException

Failed to start the session: already started by PHP.

in NativeSessionStorage.php line 141

at NativeSessionStorage->start()in Session.php line 57

at Session->start()in SessionTokenStorage.php line 78

at SessionTokenStorage->hasToken('https-ANONYMOUS_USER')in CsrfTokenManager.php line 72

at CsrfTokenManager->getToken('ANONYMOUS_USER')in Router.php line 64

at Router->generate('admin_employees_toggle_navigation', array(), 0)in Link.php line 814

at LinkCore->getAdminLink('AdminEmployees', true, array(), array('action' => 'toggleMenu', 'token' => 'c269acbf60bad0ce4d1a87b50b62136c'))in AdminController.php line 1824

at AdminControllerCore->display()in Controller.php line 326

at ControllerCore->run()in Dispatcher.php line 518

at DispatcherCore->dispatch()in index.php line 93

[vinoo]

11 hours ago, nikoz said:

Can you access your frontend ?  - Yes
Have you deleted the installation directory ? - installed prestashop thru Softaculous

 

[Nickz]

On 5/7/2021 at 9:02 PM, vinoo said:

Whoops, looks like something went wrong.

Here are a few questions for you:

What php and mysql versions you are running.

Your server is shared or else?

How much RAM do you have?

[nikoz]

Yes, probably it is a PHP version issue. Maybe it is not compatible with your Prestashop version.
So, main questions are which PHP version you have and which Prestashop version.

[Nickz]

Php versions are not the only issue, the php libraries which are needed play a role too.