My average per month of Royalties lies between 150 and 250 $ ... today I find ... 0,21 dollars royalties as "my share". 
Put that into a percentage, I get about 99,84% down ...
I would believe something like 10 or 20% down, but going from 150 to zero ? 
So this must be a mistake OR Canva did not sell anything last month, at all ?
(by the way, my individual sales went "up" from 5 to 8 dollars from July to August, so there was no reason to expect this)

Me and few other forum members also reported the same. That should be a mistake / error on Canva's end.

My earnings have been corrected now. Still a bit lower than what I had expected, but more realistic numbers.

Looks ok now. A bit lower than in July, but within the usual range.

Looks normal now, but still the lowest income since the last year's spring for me. I hope this is still an error.

Canva now definitely on a downward swing. Shame. Think we'll be regretting allowing them to get away with the complete lack of transparency now their exponential growth phase is over and they feel the need to tighten the screws, without even telling us how many sales we are making or how much we are getting per DL. Same pattern as every other agency.

My Canva sales peaked in March and have dropped every month since - August was less than 50% of what I made in March, and more than 25% less than a year ago.  I haven't uploaded anything there in more than two years so can't complain too much, but it looks like the gravy train is ending.