Thank you so much for responding. I checked my NA's and didn't get any.
Min. :2013-02-22 00:00:02 Min. : 0.0002
1st Qu.:2013-04-28 17:58:47 1st Qu.: 0.0002
Median :2013-07-03 11:57:32 Median : 6.4847
Mean :2013-07-03 11:57:32 Mean : 5.1559
3rd Qu.:2013-09-07 05:56:17 3rd Qu.: 8.8506
Max. :2013-11-11 23:55:02 Max. :11.2176
I set the threshold to -.6, .6, 1, 2. I went through the steps to select the beginning, ending date and the darkest spot in the no light area in order for the package to select the sunrise and sunsets. I accepted all the other screens and then the error keeps happening particularly when I hit (a)accept for stage depicted in the attached image.