1-click upgrade from 1.6.0.9 to 1.6.1.10 All Products Error 404 - URGENT

[SCrow]

All,

 

I am a Prestashop idiot.  I tried to upgrade my shop last night with 1-Click upgrade.  It all seemed to go well, and I received a message that the upgrade was successful, but I couldn't access the Modules section.  I ended up having to change my PHP version to 5.5 on my cPanel for HostGator.  Now I can access Modules.

 

The real problem is that all of my product pages are "gone".  When I click on a product, I get error 404, page can't be found.  I can see the products in the back office.

 

I tried to find solutions on the forums.  I have cleared the cache and disabled non Prestashop modules.  Neither of these made any difference.  

 

I also tried to restore to my previous version in the 1-Click upgrade module, but it doesn't do anything at all.

 

Any ideas that anyone could give would be greatly appreciated.

 

Thank you,

 

Susanne

 

UPDATE1:  I turned on debugging.  I get the following message when I navigate through pages on my back office:

 

Warning: mcrypt_decrypt(): The IV parameter must be as long as the blocksize….homepath/public_html/classes/Rijndael.php on line 68

 

Line 68 in that file is:

           return substr(mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $this->_key, base64_decode($ciphertext), MCRYPT_MODE_CBC, $this->_iv), 0, $length);

 

UPDATE 2:  I resolved the issue with the mcrypt_decrypt error be restoring my homepath/public_html/classes/Rijndael.php file to the previous version before the upgrade.

 

UPDATE 3: The Associations page is not able to load for any products in Chrome.  I can load that page in Microsoft Edge.  I got an error that I couldn't save an update to a product because it didn't have any categories configured.  When I view the Associations in Microsoft Edge, the categories are there.

Edited December 29, 2016 by SCrow (see edit history)

[NemoPS]

Did you try erasing the htaccess, and regenerating from the seo&urls page?