I've read everywhere, but just can't seem to find an answer for my particular problem.
Basically when I click 'add to cart', or 'login'. I get a white screen of death with absolutely no errors. Error reporting is on.
- I am on a product page mydomain.com/product
- I click add to cart
- I am not redirected to the cart page, it just redirects back to mydomain.com/product except the page is completely blank
The form still submits successfully however. If I navigate to the cart page the item has been successfully added.
After I have viewed the cart page, by manually navigating to it in the browser. Adding any other item to my cart works as expected.
A similar issue happens when I login to the backend. At first I get a WSOD, but if I refresh the page it works fine.
Now here is where it gets really damn strange.
I suspected that perhaps it was a cookie issue, so after I logged in I decided to delete the session cookies from my browser. I was hoping that I could replicate the issue once more. However, the problem had disappeared, no WSOD even though I had deleted my cookies.
The next day the issue returned. I logged into the backend and the issue disappeared. To confirm that the issue had disappeared entirely, not just for me. I asked a friend on a computer in another building to visit the site and attempt to add an item to cart. He said it worked fine.
Every morning the issue returns predictably and only when I login to the backend does the issue disappear for everybody for the entire day until the next day.
Has anyone experienced similar issues or have any idea what this could be? I'm on drupal 6.26 using ubercart