M2 2.2.11 moving http to https, hostname errors, setting changes not reflected

[SOLVED]

Updated Magento to 2.2.11 for new payment processor extension. Extension requires everything to go through https so I enabled that for the domain (shared hosting). Compiled, deployed, reindexed, cleaned up caches. However the frontend continues to use http and backend only accessible if i clear cookies before every session.

Guides instruct me to change values in store/system config/web to have both secure and unsecure url point to https. I am unable to change these as putting in the https url and trying to save results in the following error:

The input appears to be a DNS hostname but cannot match TLD against known list; The input does not appear to be a valid URI hostname; The input does not appear to be a valid local network name

​base url settings in store/syscfg/web

cookie settings in store/syscfg/web

db config for urls

I’ve manually edited the base_url values in the db but when I load store/config/web these changes are not reflected. I am at a loss as to where it’s pulling the data on the admin backend since it’s ignoring the db values.

You can tell this isn’t my day job but I am managing the e-com for my dad since his budget doesn’t allow someone actually qualified. Any help would be most welcome.