[SOLVED] Blank White Page on Backend After Almost All Changes

[rukristin]

Recently, my store began behaving strangely on the backend.  The front facing customer experience seems to be unaffected, but when I try to make any changes to products, configurations and more, prestashop saves the changes but shoots me to a completely blank screen with no errors.

 

I tried turning debug mode on, but there are no errors that display - the screen is entirely blank.

 

I've tried this across multiple computers and browsers, so that does not seem to be the issue.

 

Some things do work, such as saving general preferences.  But if I attempt to make any changes to a product, category, voucher or almost everything else this blank screen occurs.

 

edit to add:

My Memory Limit is set to 256M

I've tried to clear the cache both automatically and manually and that did not fix it

The only thing that has changed recently were a bunch of updates for prestashop core modules, but I don't know if the problem was also happening before the updates.

Edited November 24, 2014 by rukristin (see edit history)

[rukristin]

Fun story - I caused this error by relying on the cPanel code editor, which added a bunch of blank space before and after the paypal module that needed to be fixed.

 

Then, in attempting to debug it, I added more blank space to the config file which really messed up the whole thing.

 

I found the solution in the error_log sitting in the main directory - it said exactly what the problem was the whole time and I didn't even think to check there.

 

Marking as solved - hopefully people with the same error will find this.

[domorodecmezilidmi]

Hi, could you pls write your exact solution you have made? thx. 

Edited December 4, 2014 by domorodecmezilidmi (see edit history)