block details

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good morning, i ve this error when i tried the block "Details"
"An unexpected error occurred.
Argument 1 passed to Concrete\Core\Express\ObjectManager::getEntityController() must be an instance of Concrete\Core\Entity\Express\Entity, null given, called in C:\xampp\htdocs\swiper\concrete\blocks\express_entry_detail\controller.php on line 98"
some help please.

 
Steff replied on at Permalink Reply
Steff
Hi essia

I am currently faced with the same error. Did you find a solution?

Kind regards,
Stefan
Steff replied on at Permalink Reply
Steff
Got it. I had to delete all the Express Entities. Now it works again.