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I opened 615 sectors in total. But I cannot open new sectors. It gives "First Capture Contiguous Sectors" error. And there is no sector that can be opened. I would be glad if you could help.
My user id: 31362457.

If nobody has answered you yet, you have opened all available sectors. There are no more sectors anyone can open. Maybe the devs will add new sectors some day, or some year?