Facebook account behaves differently on iPad than iPhone

Facebook is not allowing me to use FB on my Ipad, but I can still use on my Iphone. I can do a search on my Ipad and look up the FB account I use on my Iphone, but it is treating the account on Ipad as if it was a different account, but it’s exactly just like my IPhone FB account. I need help bad, please help me. Thank you in advance.