Can't see each others accounts / not blocked!

Hi everyone!

So there is this person that I have seen on Insta multiple times, but since a few years and can't see their page anymore. If I find their add in a caption I come to a blank page. Does not look like when you are blocked. Just a blank page and the option in the top to ge back.

Now we work together and we have been trying to figure out this problem together: HE CANT SEE MY ACCOUNT AS WELL. But if he makes it through an add, he sees a page which says "loading". He has rhe menu on the right corner and can choose for example to block me but if he does, he gets an error. Checked each other phone. We did definitely not accidently block each other.

Any idea how we can see each others profiles?