I can't get PayPal to load with Safari or Chrome on my Mac

I think we have it fixed- Router was out of date? Idk; we will get the new one in a few days. Mostly the page won't even load. When it does, and I log in, It's fine until it hits invoices, then it will boot me out, or even one time it closed all my programs and booted me out of everything. I had to sign back into my desktop, and then it wouldn't even load the page. Usually, though- every other page loads but PayPal.