Pathfinder - Character always roll attack one and attack two

My fighter character just leveled up in a pathfinder campaign. Before, when I hit to roll, the system would only roll for one attack.  After leveling up to 6th level, when I go to roll an attack, the system rolls for an attack one and an attack two. This happens for all my weapons. I am new to pathfinder, and my GM is new to Roll20. We can't figure out what is going on. Is this a level up thing? Or when I was leveling up did I accidentally check something that causes this? I should note, this problem isn't happening for anyone else in the campaign.

I'm not overly familiar with PF rules, but I'm pretty sure you get your 2nd attack at level 6 if you're a fighter/barb/paladin. Different classes increase their BAB at different rates, pure martial classes get their 2nd attack earliest. I think the 2nd attack only applies if you're using full attack (ie no movement action that turn, unless a class ability allows you to). The other players probably aren't getting this because they're 3/4 or 1/2 BAB per level classes. Like I said, not very familiar with PF but that's the gist of it. You'll get a 3rd attack at +11 BAB. Your GM really should know this if they're familiar with PF! If they are also new to it they have an excuse though :)

Its "quality of life", as long as you are using official PFSRD classes.  You just need to get used to ignoring the second attack roll if you didn't take a full-attack action.