Shopping Cart: Oops, something went wrong Error Prestashop 1.5.4.1

[dennisv1]

Dear prestashop experts,

 

I got a big problem with my prestashop webshop, I will describe the bug below. If you could help us that would be highly appreciated

 

What happens when we get the bug:

• We can’t open product pages anymore it will show the following error: “Oops, something went wrong”
• We can’t open the shopping cart page anymore (shows the same error)
• All prices in the webshop are showing excluding VAT

 

How does the bug get “activated”:

We are not 100% sure but we know this,

• When a customer has products in his shopping cart and leaves the webshop and then a couple of hours/days goes to our webshop again the bug occurs.
• The bug doesn’t occur every time, it seems pretty random

 

What fixes the bug:

• We found that deleting the shopping carts of customers deletes the bug

 

Bugcheck:

 

I set define('_PS_MODE_DEV_',  to true and it is showing the following error:

 

[PrestaShopException]

 

Fatal error: Call to undefined method PrestaShopException::getExtendedMessage() in /public_html/override/classes/exception/PrestaShopException.php on line 38

 

And in the backoffice it shows this error:

 

[PrestaShopDatabaseException]

 

Fatal error: Call to undefined method PrestaShopDatabaseException::getExtendedMessage() in /public_html/override/classes/exception/PrestaShopException.php on line 38

 

Additional information:

• Prestashop 1.5.4.1
• This problem has something to do with the shopping cart. Because it only happens when you have a product in the shopping cart (not all shopping carts. This is also really random. It now happens on 1 of the 4 installed browsers on my computer. And the next time it happens on another browser.)

 

 

Can someone please help me?

Thanks in advance!!!

[tuk66]

The PrestaShopException::getExtendedMessage method is new in PS 1.5.5.0, so the module which put its override to the /override/classes/exception directory is not compatible with your version.