That's odd. Looks like a well-written macro, imho, and not convoluted as would cause a crash.
Since it's been working, you must have set up the "CallTime" stopwatch it uses, or an equivalent. Have you made sure nothing happened to that watch?
When you open the Call Log to Calendar macro and scroll through the action set, do you see any (other) pink highlights?
Have you considered disabling the TrueCaller app long enough to make at least one test call? That should help you further ascertain cause, at least.
