Blocks tab fails because function getrawtransaction() is missing a third argument "blockhash". Without this argument it just looks in the mempool for the txid not in the block.
Changing the line 116 on Content.php should fix the issue:
$coinbaseTx = $bitcoind->getrawtransaction($block["tx"][0], 1); to
$coinbaseTx = $bitcoind->getrawtransaction($block["tx"][0], 1, $block["hash"]);
Blocks tab fails because function getrawtransaction() is missing a third argument "blockhash". Without this argument it just looks in the mempool for the txid not in the block.
Changing the line 116 on Content.php should fix the issue:
$coinbaseTx = $bitcoind->getrawtransaction($block["tx"][0], 1);
to$coinbaseTx = $bitcoind->getrawtransaction($block["tx"][0], 1, $block["hash"]);
Thank you for your work!