Cannot build on Archi Island 14 (Could before)

I got the Sector certificate for islands 13 & 14, built island storehouse on 13.
Was able to build a storage tower on 14 and move res buildings onto 14.
Sent geos who found the salt and ti deposits on 14.

That was yesterday.

Today, unable to build mines on those deposits, unable to build anything or move anything onto 14 (green places don't light up.)

Unable to delete storage tower 'cannot raze, sector will be lost'.
Unable to build island storehouse on 14.
Can move previously placed res building off 14 but cannot move back.

Done all the cache clearing nonsense - the fault displays on different browers and computers.

As the sector 14 is useless, can I please have my 3495 gems back please.
Thankyou.