Displaying webpage to the left instead of centering.

I’m not super great when it comes to css, and perhaps this is oddly an issue with the hosting platform. When I set up WordPress it works great for about a day then no matter what theme im using it starts to align everything to the left on my browser instead of centering it. If I pop into the dashboard and re-install it works great for about a day then presto it’s back to aligning everything to the left again. If anyone can help me troubleshoot and fix it words won’t be able to express my gratitude! I can’t seem to figure it out, and it’s not any one theme it does it even using the default wordpress themes it comes with.

my wordpress site is at https://www.randykarshner.com

thanks in advance to everyone who tries to help out!

-Randy