http://cccpastefzuz6unowzgjtdwmxwjfgf5za7owwci3b2zys4jmc3xjszad.onion/cccea7c18ebdb7dd
On my system I had to set it to 15 seconds to get extroot working. Another hint to this being the culprit is having a working swap or other partitions mounted after booting, but not your extroot.
uci set fstab.