PrestaShop 1.7 Error 500 on Catalog->Products page

[Andrei]

I am encountering this problem when trying to access the backoffice

[02-Nov-2017 13:59:00 Europe/Bucharest] PHP Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000] [1045] Access denied for user 'root'@'localhost' (using password: NO)'

This is the app/config/parameters.php file

<?php return array (
'parameters' => 
array (
'database_host' => '127.0.0.1',
'database_port' => '',
'database_name' => 'xxxxxx',
'database_user' => 'xxxxxxx',
'database_password' => 'xxxxxxxx',
'database_prefix' => 'ps_',
'database_engine' => 'InnoDB',
'mailer_transport' => 'smtp',
'mailer_host' => '127.0.0.1',
'mailer_user' => NULL,
'mailer_password' => NULL,
'secret' => '****',
'ps_caching' => 'CacheMemcache',
'ps_cache_enable' => false,
'ps_creation_date' => '2017-10-26',
'locale' => 'en-US',
'cookie_key' => '****',
'cookie_iv' => '****',
'new_cookie_key' => '****',
),);

The censored fields are entered as supposed,with appropriate DB,User,Password.

Yet,when I go to the Catalog->Products page on normal mode I get Error 500 and when I go there with Debug Mode there are no errors that appear.

[PrestaHeroes USA]

please see these forge reports, maybe easy fix upgrade  to php7?  Not sure

http://forge.prestashop.com/browse/BOOM-810

 

make sure to search forge for similar issues you might encounter

[Simonas Invertus]

This message usually is shown when database access information is incorrect. 

But it is odd.

[Andrei]

There was some problems with my parameters.yml file,even if this was a fresh install of PS,anyway got it fixed by adding the propper info in the parameters file

[Tioreza]

has this problem been solved? , i got same problem

[klymets1]

On 12/30/2018 at 7:58 PM, Tioreza said:

has this problem been solved? , i got same problem

After debugging a lot in my server this is what solved for me:

at prestashop/var/cache remove all files and now the BO cache is cleared, i think this should be cleaned too when you click on "clear cache" in the BO.

[Deepak]

On 3/11/2019 at 6:12 AM, klymets1 said:

After debugging a lot in my server this is what solved for me:

at prestashop/var/cache remove all files and now the BO cache is cleared, i think this should be cleaned too when you click on "clear cache" in the BO.

Yes. Its working for me. 

Thanks klymets1