Hi Rutvij,
I faced a different case where all items of bank statement had a green checkbox but the statement itself had a red cross.
In fact there was a problem in another bank statement and program was stopped without updating statuses at bank statement level.
The problem was solved simply by running transaction FEBP. FEBP didn't post any document but updated the statement status, replacing red cross by green checkbox.
I know your case is not the same, but try transaction FEBP for your statement. Maybe status will be updated.