updates not sucessful

Good morning,
I'm wondering if you could help i'm very new to MUDEV but i am really liking it.
I have run the plugin updater and selected all, 6/9 updates were successful. When I have clicked into see individual sites there are no updates required

am I right in thinking this is just a glitch or do I need to do something?

sites that were not successful were:
wildwood digital.co.uk
dev.mcplumbing.co.uk
candhcampers.co.uk.annons.net

Thanks,
Will