Waiting for encrypted source device, does not exist, check cryptops=source= bootarg, drop to shell issue

I've tried my best to research a fix but am really struggling to understanding what I need to do to resolve this..

I'm currently running pop! os dual boot with w10, both encrypted.
I ran an apt-get upgrade as usual yesterday, attempted to boot into pop os this eve and am faced with;

cryptsetup: Waiting for encrypted source device UUID='long string..' ALERT! encrypted source device UUID='long string..' does not exist, can't unlock cryptswap. Check cryptopts=source= bootarg: cat /proc/cmdline or missing modules, devices: cat /proc/modules; ls /dev Dropping to a shell

If I 'exit' I get: mdadm no devices listed in conf file were found and it drops to shell. (if i attempt to boot into w10 I also cannot proceed past the usual bitlocker encrytion splash)

I've booted into a usb live environment, here's the output of blkid:

loop0                                       squashfs                                                                 sda1                                        iso9660     Fedora-WS-Live-29-1-2 2018-10-25-00-07-35-00                 /run/initramfs/live└─sda                                       iso9660     Fedora-WS-Live-29-1-2 2018-10-25-00-07-35-00                 sda2                                        vfat        ANACONDA              9415-D610                              └─sda                                       iso9660     Fedora-WS-Live-29-1-2 2018-10-25-00-07-35-00                 sda3                                        hfsplus     ANACONDA              133f77e2-97a8-3d0f-8382-7c190bd63438   └─sda                                       iso9660     Fedora-WS-Live-29-1-2 2018-10-25-00-07-35-00                 sdb1                                                                                                                 └─sdb                                                                                                                sr0                                         iso9660     U3 System             2008-05-06-12-26-42-                   live-rw                                     ext4        Anaconda              8867ebfa-3896-4b40-8c83-b0584ecf77b4   /├─loop1                                     ext4        Anaconda              8867ebfa-3896-4b40-8c83-b0584ecf77b4   └─loop2                                                                                                              live-base                                   ext4        Anaconda              8867ebfa-3896-4b40-8c83-b0584ecf77b4   └─loop1                                     ext4        Anaconda              8867ebfa-3896-4b40-8c83-b0584ecf77b4   pop-swap                                    swap                              6c86e674-d2f6-4bd5-8b8b-f676c9fad54a   └─luks-dd1c4ff6-fa70-4c11-b265-5b8d0c4b1d70 LVM2_member                       8ESyi9-4aWg-RY7w-rr36-eJab-dceD-JCLb2T └─nvme0n1p7                               crypto_LUKS                       dd1c4ff6-fa70-4c11-b265-5b8d0c4b1d70   └─nvme0n1                                                                                                        pop-root                                    ext4                              d6ae6236-0996-453d-a41a-233e0fa00011   /run/media/liveuser/d6ae6236-0996-453d-a41a-233e0fa00011└─luks-dd1c4ff6-fa70-4c11-b265-5b8d0c4b1d70 LVM2_member                       8ESyi9-4aWg-RY7w-rr36-eJab-dceD-JCLb2T └─nvme0n1p7                               crypto_LUKS                       dd1c4ff6-fa70-4c11-b265-5b8d0c4b1d70   └─nvme0n1                                                                                                        nvme0n1p1                                   ntfs        Recovery              227639107638E667                       └─nvme0n1                                                                                                            nvme0n1p2                                   vfat                              4C3A-FE47                              └─nvme0n1                                                                                                            nvme0n1p3                                                                                                            └─nvme0n1                                                                                                            nvme0n1p4                                                                                                            └─nvme0n1                                                                                                            nvme0n1p5                                   vfat        LINUX-EFI             99E8-F508                              └─nvme0n1                                                                                                            nvme0n1p6                                   vfat                              78F5-7B8C                              └─nvme0n1

Here is the current content of etc/fstab/ :

## Use 'blkid' to print the universally unique identifier for a# device; this may be used with UUID= as a more robust way to name devices# that works even if disks are added and removed. See fstab(5).## <file system>  <mount point>  <type>  <options>  <dump>  <pass>PARTUUID=80ce872b-8fe3-4a5a-8d57-bbd26a5d70f6 /boot/efi vfat umask=0077 0 0UUID=d6ae6236-0996-453d-a41a-233e0fa00011 / ext4 noatime,errors=remount-ro 0 0/dev/dm-1 none swap defaults 0 0

I've been told I need to "Update fstab and all conf files in my internal disk ESP partition /loader/entries/*.conf"

I don't understand how to do this, please could someone take the time to explain in a little more depth what steps need to be taken for me to remedy this, or link me to some corresponding docus?

Thanks