I can't see my calendar anymore, help please

I am having trouble with my calendar. I have a Samsung s8+. I don't know if the problem is caused by a Samsung setting or a Google setting or a Verizon thing. Im assuming something happened when it last updated because i haven't changed anything and that's when I noticed it, i don't use my calendar every day. Now i can no longer see the days, just white space. I can see the month and year at the top. If there's a holiday or event i can see it listed where the day should be, and if i tap a certain day i see the highlighted box around the day, but no other lines or numbers or anything making it look like a calendar. Ive tried switching colors and other settings but it hasn't helped.