"Source Rectangle is Empty" error

Starting today I have a problem with Photoshop when many different actions result in an error that states that something can't be done because the Source Rectangle is Empty.

And I mean very different actions result in that one error - resizing image, resizing layers, changing color frofile RGB/CMYK, or even just trying to open some files. And all those files are old, well-used multilayered files that I modify regularly (something like templates) - never had problems with them before and nothing changed in my computer configaration either to cause it.

I can't effectively work in Photoshop right now and that is a serious problem as my work depends on using Photoshop... 

Before you ask, yes, I browsed the forum and read all other threads with the same problem - none of the solutions worked for me but then their problems seemed more localised than mine.

I work on Windows 10 with latest Photoshop version. Tried with the previous version too - same problem. Should I try even older version?