You seem to be on a fork, based on the 7 day old chain. Your chain-id is correct, that's what I'm using.
Review my posts and you will see I too had the 7 day old thing going on, then I changed someting and now starting from scratch starts at 4 days old.
Make sure you remove p2p/* and logs/* too.
Restarted. Using your global API I see 3 active witnesses:
"1.6.5246",
"1.6.5247",
"1.6.5248"
Mine isn't active yet b/c the blk chn isn't yet synced. As soon as it does and my witness tries to produce a block it crashes.
I see many more active as the blk chn gets closer to being synced:
"1.6.1526",
"1.6.1530",
"1.6.1537",
"1.6.1625",
"1.6.5246",
"1.6.5247",
"1.6.5248",
"1.6.5249",
"1.6.5250",
"1.6.5251",
"1.6.5252"