但是 摆 在 我们 面前 的 一 格 问题 摆 = put, standing, arranged

但是摆在我前面一个问题 Should say so in English But in front of me a question

you should say 但是摆在我们面前的一个问题是.....maybe it's a typo cuz apparently you just write a wrong character "个" not "格" and the meaning of the sentence is "but the major problem that we need to face/ challenge is that...." as for the chinese word "摆",it means something that is displayed ,and when we attach the 问题 to it , we can consider it as some problems that we need to tackle or solve right now/immediately

但是摆在我们面前的一格问题... well,i couldn't see the whole picture,so i can only guess. and i think u put the 格 wrong,it should be 个 this sentence translate literally is: but we are facing a problem or but there's a problem confront us or but I think of the problem ahead of us or there is a question becomes pertinent now. 摆 u can consider it means put,arrage,display

谢谢老师 ^^