Can't see a directory that's supposed to exist

So I own a device (casa node) which is basically a raspberry pi 3b+ with a hard drive and a modified OS (they call it CasaOS) and I want to edit a file. I found the location of this file by looking at the debug logs of the program that uses it. here's what they look like: 2019-01-05T22:11:44Z Bitcoin Core version v0.17.0 (release build) 2019-01-05T22:11:44Z InitParameterInteraction: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrel$2019-01-05T22:11:44Z Assuming ancestors of block 0000000000000000002e63058c023a9a1de233554f28c7b21380b6c9003f36a8 hav$2019-01-05T22:11:44Z Setting nMinimumChainWork=0000000000000000000000000000000000000000028822fef1c230963535a90d 2019-01-05T22:11:44Z Using the 'standard' SHA256 implementation 2019-01-05T22:11:44Z Default data directory /root/.bitcoin 2019-01-05T22:11:44Z Using data directory /usr/local/casa/chains/bitcoind/data/ 2019-01-05T22:11:44Z Using config file /usr/local/casa/chains/bitcoind/conf/bitcoin.conf The bitcoin.conf is the on I'm after, however I can't get in the directory. Once I'm in /usr/local/casa I can't see or cd into the chains dir. the ls -a command returns . .. applications launch.sh How can I get in the chains folder and ultimately to the bitcoin.conf file? I did all of this as root.