Fatal error: Call to a member function getMessage() on a non-object

Hey guys, i had the same issue and got it resolved:
I thought i had checked the paths in core/config/config.inc.php being correct.

In fact, there was a mistake on line 30:
The path to processors is the only one that diverges in scheme, as it's not
but


All other components' paths point to direct subfolders of your modx core path, while "processors" is the only one that's nested deeper inside.
I think i just have overlooked that difference in the processors path when i updated the config.inc.php and so might have others!

Although that's the default location of the processors directory, you could theoretically put it anywhere as long as the line in the main config file correctly describes its location.

That said, I've never seen a case where it's moved from the default location.