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Frits van Leeuwen

Hello everyone,

I tried to update from Prestashop 1.7.8.11 naar 8.2.1 . Unfortunately, this didn't work. I was able to access the back office, but I could not open the front-site.
After many hours of struggling, I decided to restore the backup. However, I don't know what they did wrong, but now the front-end site works, but the back-end site doesn't.
I can access the database, and that's where I managed to disable the front-end site.
I turned on the debug. and I get this message:
 

(1/1) FatalErrorException

Error: Class PrestaShopBundle\Form\Extension\ModifyAllShopsExtension contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Symfony\Component\Form\FormTypeExtensionInterface::getExtendedType)

in ModifyAllShopsExtension.php line 49

How can I fix it?

Frits van Leeuwen

Hello everyone,

I tried to update from Prestashop 1.7.8.11 naar 8.2.1 . Unfortunately, this didn't work. I was able to access the back office, but I could not open the front-site.
After many hours of struggling, I decided to restore the backup. However, I don't know what they did wrong, but now the front-end site works, but the back-end site doesn't.
I can access the database, and that's where I managed to disable the front-end site.
I turned on the debug. and I get this message:
 

(1/1) FatalErrorException

Error: Class PrestaShopBundle\Form\Extension\ModifyAllShopsExtension contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Symfony\Component\Form\FormTypeExtensionInterface::getExtendedType)

in ModifyAllShopsExtension.php line 49

How can I fix it?

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