Unable to update due to unknown package error

Trying to do an update and it fails due to unknown package.

i uploaded logs here: https://paste.osmc.tv/lobupexufe

any help would be appreciated!

You have manually installed so many packages that I would recommend to do manual updates via command line as that shows you better what might be wrong.
sudo apt-get update
sudo apt-get dist-upgrade

apt-get dist-upgrade
Reading package lists… Done
Building dependency tree
Reading state information… Done
Calculating upgrade… The following packages were automatically installed and are no longer required:
rbp2-image-4.4.27-9-osmc rbp2-image-4.9.29-5-osmc
Use ‘apt-get autoremove’ to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

this is what i get after doing dist-upgrade, maybe i dont need to update?

Well it most likely indicate that the update worked well and just one package thrown an error that MyOSMC could not handle and therefore shown an error. As mentioned you have so many packages installed the likelyhood one of them throwing an error that MyOSMC can not understand is high. Therefore for future do it via command line.