V 4.6.2 running on dedicated server
Suddenly cannot add images to products. Discovered when trying to add new product and image. Also happens on existing product.
Unable to create thumbnail for file "/var/www/vhosts/domain.com/httpdocs/images/detailed/12/table-saw.png": Unable to open image /var/www/vhosts/domain.com/httpdocs/images/detailed/12/table-saw.png
Odd thing is that the file does get created in the folder. I can view it in browser by going directly to the file name. But, if I try to upload a different pic then the previous file disappears and the file of the new image is there.
All has been working for years up to yesterday. I did clear cache and deleted the /var/cache/ folders.