ERROR: failed to retrieve settings / settings: <nil>

I've installed postmoogle via this ansible: https://github.com/spantaleev/matrix-docker-ansible-deploy

Changed it to use the latest tag on docker instead of a fixed version due to having the same issue as: #36 (closed)

This made the container boot but I get some errors during startup:

Oct 08 19:58:25 matrix matrix-bot-postmoogle[1186098]: postmoogle.INFO #############################
Oct 08 19:58:25 matrix matrix-bot-postmoogle[1186098]: postmoogle.INFO Postmoogle
Oct 08 19:58:25 matrix matrix-bot-postmoogle[1186098]: postmoogle.INFO Matrix: true
Oct 08 19:58:25 matrix matrix-bot-postmoogle[1186098]: postmoogle.INFO #############################
Oct 08 19:58:25 matrix matrix-bot-postmoogle[1186098]: smtp/msa.INFO Starting SMTP server on port 25587
Oct 08 19:58:25 matrix matrix-bot-postmoogle[1186098]: smtp/msa.INFO Starting SMTP server on port 2525
Oct 08 19:58:25 matrix matrix-bot-postmoogle[1186098]: matrix.WARNING cannot get !roomidredacted123:mydomain.redacted settings: <nil>
Oct 08 19:58:25 matrix matrix-bot-postmoogle[1186098]: matrix.WARNING cannot get !roomidredacted456:mydomain.redacted settings: <nil>

Postmoogle bot joins the server fine, I have it added to one room (matches !roomidredacted123) and one private message thread (matches !roomidredacted456). If I send the command !pm help in either location I get the following output:

ERROR: failed to retrieve settings: M_NOT_FOUND: Room account data not found
ERROR: failed to retrieve settings: M_NOT_FOUND: Room account data not found
ERROR: failed to retrieve settings: M_NOT_FOUND: Room account data not found
ERROR: failed to retrieve settings: M_NOT_FOUND: Room account data not found
ERROR: failed to retrieve settings: M_NOT_FOUND: Room account data not found
ERROR: failed to retrieve settings: M_NOT_FOUND: Room account data not found
ERROR: failed to retrieve settings: M_NOT_FOUND: Room account data not found
ERROR: failed to retrieve settings: M_NOT_FOUND: Room account data not found
ERROR: failed to retrieve settings: M_NOT_FOUND: Room account data not found
ERROR: failed to retrieve settings: M_NOT_FOUND: Room account data not found
ERROR: failed to retrieve settings: M_NOT_FOUND: Room account data not found

Let me know if you need more info, cheers.