Disable First Transfer WIndow Issue

Hi all, desperately looking for some help with an issue that has completely thrown me. I have started a new save with Gateshead in the National League and I selected, as always, disable first transfer window. I didn't try and sign anybody for the first couple of months and then then I had two injuries to two GKs. I went out a signed a GK on loan from a National League side. I then made an offer to sign a striker (he was playing on a non-contract for another team). I changed my mind so withdrew the offer. Both of these happened about mid September.

A couple of weeks later I looked at signing another couple of players and for some reason every time I click on 'make an offer' or 'approach to sign' I get a message box saying Gateshead are unable to sign players during this transfer window. It wasn't an issue two weeks before! Any ideas what the hell is going on!? I haven't had a message regarding an embargo, etc, so like I said - I'm stumped! Any and all advice greatly appreciated.