halivu Posted February 17, 2015 Share Posted February 17, 2015 (edited) Hi, I know many people have ask similar question but mine is a bit different. Both my front store and admin page are blank. I have change define.inc.php to show the error and I got the error on the front page but the admin page is still blank. On the front page, at first it was the SQL fetch error, I found a solution for it. The front page loaded. I thought it was it but later, when i went back, it shows me 2 "Cannot modify header information" errors and nothing else On the admin page, it does not show me anything but a blank page. I absolutely have no idea how to deal with this. Please, if anyone have any idea or method to fix, please help me out. Thank you. Edited February 19, 2015 by halivu (see edit history) Link to comment Share on other sites More sharing options...
halivu Posted February 19, 2015 Author Share Posted February 19, 2015 Really? Could some body please help me out Link to comment Share on other sites More sharing options...
WynandCilliers Posted February 19, 2015 Share Posted February 19, 2015 Hi, I also have the same problem. I have tried for two days now to find a solution but nothing works. I was importing products and the next moment received an error and now I cannot get back in to the Admin section of my website. After activating the error message display, I also have the two "Cannot modify header information" errors in my front office. If there is someone that can please help troubleshoot this problem, it would be greatly appreciated. I am running Version 1.6.0.11 Thanks, Wynand. Link to comment Share on other sites More sharing options...
WynandCilliers Posted February 19, 2015 Share Posted February 19, 2015 I do not know why and what this file does, but this post helped me... I deleted this file and as soon as I tried logging in again, it worked. The file automatically gets regenerated. cache/class_index.php From this post: https://www.prestashop.com/forums/topic/299307-solved-override-for-paymentmodulephp-forces-an-error/ halivu, please test and let me know if this works for you. Link to comment Share on other sites More sharing options...
halivu Posted February 20, 2015 Author Share Posted February 20, 2015 Hi WynandCilliers, Thank you for you reply. For some reasons, the front store is working now even before I deleted the class_index.php. However, the admin page is still blank even after I deleted that file. If you have any other way, please let me know. Thank you. Link to comment Share on other sites More sharing options...
WynandCilliers Posted February 20, 2015 Share Posted February 20, 2015 Hi Halivu, Unfortunately I don't. This worked for me. I have however seen probably about 20 different solutions which you can find in this forum, I tried everything until I found the correct one. This is very frustrating, and hopefully with the next update this will be sorted. Good luck though, please remember to post your solution here if you do manage to solve it. Thanks, Wynand. Link to comment Share on other sites More sharing options...
halivu Posted February 21, 2015 Author Share Posted February 21, 2015 WynandCilliers, I guess even though the problem is similar but the cause varies from case to case. I will tried to update my localhost, see if I will encounter the same issue. Sure, if I can get my fixed, I will post it here unless a newer update comes out and I will have a different issue ) I have seen some people had problems upgrading from the older versions to 1.6.0.9. So I think every time we update, there will be a chance of something get screwed up. Link to comment Share on other sites More sharing options...
flyclothing Posted March 5, 2015 Share Posted March 5, 2015 I just upgraded and had the same thing happen to my site. So much for an easy 1-click upgrade. Did you get your site fixed and what's was the solution? Link to comment Share on other sites More sharing options...
LuxFad Posted April 13, 2015 Share Posted April 13, 2015 I went to update and now have blank screens as well... Link to comment Share on other sites More sharing options...
Rudolfo78 Posted April 17, 2015 Share Posted April 17, 2015 (edited) Same here..manually upgraded from 1.6.0.9 to 1.6.0.14, file class_index.php deleted after whole process and got blank admin page... File define.inc.php changed, nothing appeared... Appreciate any suggestions... Edited April 17, 2015 by Rudolfo78 (see edit history) Link to comment Share on other sites More sharing options...
Anto Webcraft Posted April 20, 2015 Share Posted April 20, 2015 hI, Did you clear all the cache and set correct permissions ? => login on FTP server => select all Prestashop files => change permissions (right click on filezilla > File permissions... ) to 755 = Owner : read/write/execute, Group: read/execute, Public:read/execute. => Don't forget to set the recursive option for the changes to be applied in sub-folder/directories, it can take à while... => Select /cache directory : delete class_index.php and the content of /cache/smarty/* and apply the same rights to /cache folder with 775 = Owner: read/write/execute, Group:read/write/execute, Public:read/execute (don't forget the recursive option) Cheers Antonin Link to comment Share on other sites More sharing options...
Rudolfo78 Posted April 20, 2015 Share Posted April 20, 2015 I've done your suggestion step by step but nothing happened...even top admin menu disappears now...completely blank page Link to comment Share on other sites More sharing options...
Anto Webcraft Posted April 21, 2015 Share Posted April 21, 2015 (edited) Did you verifiy the correct settings in : - /config/settings.inc.php : _DB_SERVER_ / _DB_NAME_ / _DB_USER_ / _DB_PASSWD_ - /config/defines.inc.php => define('_PS_MODE_DEV_', true); - in phpmyadmin : table : xx_shop_url > domain / domain_ssl / physical_uri - in phpmyadmin : table : xx_configuration > PS_SHOP_DOMAIN / PS_SHOP_DOMAIN_SSL Otherwise you can try to disable overrides and non-native prestashop modules in phpmyadmin : table : xx_configuration : PS_DISABLE_OVERRIDES = 1 / PS_DISABLE_NON_NATIVE_MODULE = 1 Don't forget to clear the class cache by deleting /cache/class_index.php file If nothing works next step should be to reach the apache/php error log to now exactly what's happening. Edited April 21, 2015 by Merguezzz (see edit history) Link to comment Share on other sites More sharing options...
janceluiz Posted May 30, 2015 Share Posted May 30, 2015 I have same problem in my site. My site show admin blank page, but my site is ok. I make these changes above, but not working. Please, help me. Link to comment Share on other sites More sharing options...
IMIvo Posted March 25, 2016 Share Posted March 25, 2016 Same here. The shop is working fine but admin page is whole white. I did all of the above but i am unable to get any error message at all. cPanel error log is also empty. Could anyone advise what would be the best approach to figure the issue out? Link to comment Share on other sites More sharing options...
andreyg13 Posted May 3, 2016 Share Posted May 3, 2016 (edited) I have the same issue but nothing what has been suggested here works I get this: Fatal error: Call to undefined function mysql_connect() in /home/website/public_html/classes/db/MySQL.php on line 51 Edited May 3, 2016 by andreyg13 (see edit history) Link to comment Share on other sites More sharing options...
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