I tried looking up the 1930 and 1940 census for Betty L. Collins and the following links gets errors in the upper left corner and I have a spinning square in the center of the screen
https://www.familysearch.org/ark:/61903/3:1:3QS7-L9M1-SWCD?personaUrl=%2Fark%3A%2F61903%2F1%3A1%3AKWFW-9L5
https://www.familysearch.org/ark:/61903/3:1:33S7-9R87-P6L?cc=1810731&personaUrl=%2Fark%3A%2F61903%2F1%3A1%3AX4WB-K6J
Both links work just fine for me.