Thank you very much for the tip Lipora, I did as you suggested and the error message about the TUN/TAP not being found has disappeared from my logfile! However, I have encountered a new error which reads as follows:
2019-08-30 14:34:44,545 DEBG 'start-script' stdout output:
[info] Application does not require port forwarding or VPN provider is != pia, skipping incoming port assignment
2019-08-30 14:34:44,545 DEBG 'start-script' stdout output:
[info] Checking we can resolve name 'www.google.com' to address...
2019-08-30 14:34:44,554 DEBG 'start-script' stdout output:
[debug] Having issues resolving name 'www.google.com', sleeping before retry...
From this I understand there to be a connection issue, could this be tied to the DNS Server I have configured? My DNS servers are set up in my router to be automatically assigned by my ISP. I have gone into CMD and entered "ipconfig /all", there it told me the DNS server was 192.168.1.1 which is what I have entered into the configuration of the delugevpn docker container. Is this incorrect? I don't need to access deluge or indeed any of my NAS from outside my home network, I only want to be able for the NAS to download and seed torrents after I add them at home.