Unable to add new configurable products due to an error related to images
I have published a magento 2.2.2 website few months ago and it was working fine. Last month my client did not pay off for the hosting and it was shut down for 2-3 days and after that the client is unable to add new product due to following issue.
The file 'path' does not exists or not a file.
I figured that it might a permission issue and change the pub/media permission to 777 but it did not work.
However, I can create configurable products without images and then edit each product to add new image. Which means there are no folder permission issues does exist.
Can someone please point out how all of a sudden this issue came up while there were no development going on.