Hi there duckyb18,
If you're unable to open a certain website in Safari, try working through the steps in this link to see if they resolve the issue for you: If Safari isn't loading websites or quits on your iPhone, iPad, or iPod touch - Apple Support
If the issue persists and this isn't happening with any other websites, you'll want to reach out to the website owner or your bank for more assistance. They're best-equipped to help with how best to access their website and features of their website.
Take care.