Currently your text string is not recognised as a date, since it’s lacking the T between the date and time part. See date type
So basically you’ve got two options:
Change all of your properties to become proper dates, and not just text strings as they are currently
Use the date(text, format) to transform those texts into a date again, i.e. something like date(modified, "yyyy-MM-dd HH:mm") (Untested, but I think it’s the correct variant, as this is not the first time I’ve answered this question… )
What Obsidian considers a date, and what Dataview considers a date is unfortunately currently not the same. Obsidian accepts the missing T, but dataview doesn’t (as of v0.5.65). Therefore one needs to reformat it back into a date using that date(text, format) variant.